Abstract: A letter sheet includes a body portion which is foldable about itself so as to form at least two intermediate panels positioned between a pair of outer panels. Removable flange portions extend along and are detachably secured to the edges of the body portion which constitute the outer panels. The body portion is provided with a line of perforation along substantially the entire length of the edges of the outer panels. At least one of the removable portions on one of the outer panels is adapted to overlie the corresponding removable flange portion of the other of the outer panels when the sheet is in its folded condition. Connector means are associated with the removable flange portions for joining the overlying flange portions to thereby seal the folded letter sheet for postage.

Abstract: An envelope which may be cut from a single piece of sheet material comprising a plurality of flaps, the front and rear of which are fitted with adhesive strips for sealing and for holding a photograph. The flaps are disposed so that an attached photograph may be covered and protected in the mail. Perforations or die cuts define a removable portion of a writing surface, removal of which makes the photograph visible from outside the envelope. The flaps are cut and disposed so that alternate procedures of refolding and resealing provide a frame for the photograph which may be placed on its side or its end.

Abstract: The booklet has a refillable binder in which there are writing sheets and opened envelope-forming sheets with a gummed perimeter region bound to the cover by demountable binding rings passing through slots in a stub section. Each sheet and each envelope is separable from the stub section by a perforated tear line. The sheets, as well as the envelopes, are provided with embossed fold lines such that with a sheet lying on an envelope, the folding of the sheet and the folding of the envelope about the sheet can be done simultaneously. Sheet and envelope are torn in assembled form from the binder in a single tearing motion along a perforated line. Another perforated line is provided along one end of the envelope for opening after it is sealed.Also described is a plastic binding ring which is made up of two identical halves of extruded plastic having interlocking butt joints which snap together.

Abstract: A continuous paper strip is provided with a first plurality of transverse tear lines spaced apart from each other to divide the strip into a plurality of strip elements having a desired height. Each strip element is subdivided into a first and second part of different heights by a transverse folding line. The first part has a height "h+d", where "h" is the height of the invoice, bill or the like, and "d" is the width of the bands on which an adhesive is applied. The second part has a height "h+2d". Longitudinal slots are purchased at each side of the first part of each strip element each having a width equal to "d". On the main face of the strip and near the transverse folding line separating each strip element, an adhesive is applied on a band of a width substantially equal to "d", while at the opposite face of the strip and on the second part of each strip element an adhesive band is applied near the tear line.

Abstract: A thin lightweight strip of booklets and method of making the same are disclosed. The booklets are comprised of one elongated sheet folded in thirds, then in half, then in half to define pages of the same size without the use of fasteners. The booklets are connected end to end to form a strip which is separable along perforation lines. The strip of booklets has a fold line between and adjacent the free ends of said sheet along one edge of said strip and only fold lines along the opposite edge of said strip. The strip of booklets is adapted to be sealed within an envelope.

Abstract: An envelope for sending a written message with a photograph attached thereto. An adhesive is provided on one flap for attaching a photograph; the flap can then be folded so that the photograph is over the writing surface. Other flaps fold over the photograph so that the photograph is shielded in its entirety.

Abstract: A mailer formed from one piece of relatively stiff cardboard and including a mailing flap, detachable when the mailer reaches the addressee. The mailing flap extends over an open-ended envelope carrying a slide card, connected to the envelope by a tab, to hold the slide card to the envelope during passage through the mail. The slide card may carry a message or may be used in cooperation with the envelope as an informational advertising or educational device. The mailer is formed from four connected sections. Three of the sections are defined by folds and a fourth section is partially severed from the cardboard and its inner end is defined by a slit extending for substantially the length thereof. This section may carry a message or cooperate with educational information on the envelope and is folded between the first and second sections defining the envelope and retained thereto by the tab.

Abstract: An advertising multiple use mailing folder or mailer including an envelope which may be twice used in furthering the completion of a business transaction.

Abstract: A multiple, potentially variable message printing method is disclosed which comprises: storing desired message information in a computer system; moving a single, continuous strip of paper in the direction of its long axis across printing means operated by said computer system to print the desired message information on the continuous strip; and thereafter folding and severing the single strip of paper to form a plurality of separate, sealed envelope units, each carrying a specific message which may be of variable content if desired. Alternatively, separate paper sheets are processed through such a computer system and then folded into separate message units.

Abstract: A two-way mailer assembly making it possible for a company to render a statement of charges to a customer and for the customer to remit. The assembly is created from a single paper blank which is perforated to create four panels, the panels being so folded and adhered to each other as to define forwarding and return envelopes as well as a statement and a return stub to accompany payment thereof.

Abstract: The single-ply, multi-panel envelope form comprises a pair of coplanar, envelope-defining panels disposed in end-to-end, spaced relationship and at least one intermediate panel disposed between and end-connected relationship with said envelope-defining panels wherein the opposite side edges of each intermediate panel are disposed inwardly of the corresponding side edges of the envelope-defining panels. The side edges of the envelope-defining panels of each form are disposed in contacting, sealed relationship when the panels of each form are zig-zag folded into envelope-defining relationship permitting removal of the intermediate panel from the interior of the envelope through access means provided in one marginal edge thereof.

Abstract: A paper product intended for use as an advertising piece or the like and capable of being made from a single web of material by a web fed machine consists of a multiple paged brochure, a return mailing envelope, and a return application or order form combined in a single package adapted in one form for non-mailing uses, such as a newspaper drop-in or hand-out, and in another form as a mailing package.