Abstract: An electronically controlled motor driven siren. The siren is electronically controlled to generate different sound profiles, while having advantages of a motor driven mechanical siren. In some embodiments, the siren is part of a system of multiple sirens. The phases of the rotors of the sirens of the system can be electronically controlled to generate different multi-siren combined sound profiles.

Abstract: In accordance with the present invention, a multiple-ply label form is provided which includes a plurality of readily removable elements for use in facilitating business operations, such as package shipment. The removable elements include at least one adhesive backed element securable elsewhere by means of the adhesive, and a single-ply and/or multiple-ply element readily separable from the balance of the label form. The adhesive backed element may have one or more plies. Mailing information or other indicia may be applied on each element as desired. The single-ply and/or multiple-ply element may have an adhesive free backing for filing, mailing or other applications related to the business employing the label form.

Abstract: In accordance with the present invention, a multiple-ply label form is provided which includes a plurality of readily removable elements for use in facilitating business operations, such as package shipment. The removable elements include at least one adhesive backed element securable elsewhere by means of the adhesive, and a single-ply and/or multiple-ply element readily separable from the balance of the label form. The adhesive backed element may have one or more plies. Mailing information or other indicia may be applied on each element as desired. The single-ply and/or multiple-ply element may have an adhesive free backing for filing, mailing or other applications related to the business employing the label form.