Abstract: An improved permanent calendar construction that allows easy removal and rearrangement of vertical date columns and yet prevents their disengagement when, for example, the calendar is tilted forward. Extending horizontally across the date column area or well, there is located at least one lipped horizontal track. Defined in the back wall of each date column are at least two openings or grooves that can mate with the track, as desired. The lip results in a track which extends in more than one straight axial direction and thus engages the groove at least in dual directions (and with the end portion of the track furthest from the back wall terminating in an upwardly and perpendicular direction from an axis perpendicular to the back wall). An example of the preferred embodiment is a track with a right angle lip. Of course, at a minimum, the purposes of the present invention can be accomplished if the track is not lipped and is parallel to or diagonally upwardly directed toward the rear wall.

Abstract: A perpetual calendar in the form of a desk calendar or wall supporting calendar including a front panel with a window cutout revealing a laterally movable slide having a projecting tab thereon engageable with notches or seats to properly locate the slide in relation to the window and maintain the slide in position. The calendar also includes printed indicia above the window opening indicating the days of the week and printed indicia below the window opening indicating the years. The slide includes indicia indicating the date of the month and additional indicia indicating the month of the year thereby providing easily adjusted indicia which can be readily observed to provide a calendar which will properly indicate the day of the week, the month, the date of the month and the year for many years.

Abstract: A biorhythmic cycle indicator having three, sine-wave-contoured plates that slidingly overlay a backing plate that has a calendar strip. The plate contours and the calendar register to provide a graphic representation of a person's biorhythmic cycle.The contours of the sliding plates are illuminated to accent the component cycles.

Abstract: There are disclosed structures capable of being formed from hitherto non-useable thin materials for easel supports which are initially produced in flat shipping form, but which can be erected into slant surface display easels and mounts in which the structures are snap locked into an operative position with the parts thereof held under a selectable tension, with upper vertical face-to-face contacting display subpanels which are attached to each other at the top hinge bend line therebetween only, with the upper rear display subpanel having struck out tongue portions which are stapled to the lower slanting front display subpanel under selectable tension to produce a rigid snap-locked easel display and mount.

Abstract: An improved permanent calendar assembly adapted and structured to display any month of any year. As in known calendars of this type, the construction features a flat main body with forwardly protruding tracks for removable mating with date columns. For flexibility of display blocks or end pieces carrying dates "29", "30" and "31" are rotatably or removably mounted onto the date columns. The date mounting structure allows both sides of the blocks to be shown, one side carrying a date and the reverse side being blank.

Abstract: A perpetual calendar is provided having a frame defining an enclosure with a frontal portion provided with first indicia representing days of a week, and, within the enclosure, seven prisms removably mounted in said frame, and provided with second indicia located beneath said first indicia representing days of a month.

Abstract: A rectangular shaped card has three score lines parallel to the short edges which divide the card into four sections for printed matter on most of the surfaces thereof. The first and second sections are disposed in inverted V-shape by inwardly disposed locking tabs to stand with the outer sides exposed. The third and fourth sections are folded upon themselves and adherred to the outside face of the second section to form a ledge between the third and fourth sections for pencils, pens and the like with the recess therebetween forming a receptacle for notes which are inserted therein.

Abstract: A conventional calendar for a dial telephone instrument is improved so that it may be used alternatively either as a calendar which is to be associated with a conventional telephone instrument or stood on a desk or the like. In case the calendar is to be associated with a telephone instrument, a disc portion is removed from a sheet and placed in the central portion of the dial of a telephone instrument. In case the calendar is to be free standing, the upper portion of its peripheral part is bent backwardly to form a supporting leg.