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Patent: 3,646,696
Issued: March 7, 1972
Inventor: Robert Sarkisian, Oak Park, MI

Patent No. 3,641,950
Issued: Feb. 15, 1972
Inventor: Franc Lennart Axhamre, Savedalen, Sweden
Assignee: Moderna Butiksenrednengar, AB, Savedalen, Sweden
   This display stand on wheels has a vertical, rotating post in the center. The object of the invention is to provide a stand that is stable although its different compartments are differently shaped for exposing different kinds of goods.

Patent: 3,640,010
Issued: Feb. 8, 1972
Inventors: Murray Altman, Valley Stream, NY; Mordecai R. Craig, Demarest, NY, and Irwin H. Block, New York.
Assignee: The Purdue Frederick Company
   This invention is a shipping carton whose cover may be separated from the base and erected as a self-supporting display panel to allow product exhibition in the opened carton.

Patent: 3,640,389
Issued: Feb. 8, 1972
Inventor: Alan K. Snyder, River Forest, IL
Assignee: Chicago Display Company, Melrose Park, IL
   The principal object of this invention is to provide a display stand which can be assembled or disassembled without the use of the usual nails, bolts, screws or other fasteners, and which can be assembled without the use of tools. The display also provides an extendable shelf and can be manufactured inexpensively.

Patent No. 3,638,664
Issued: Feb. 1, 1972
Inventor: Jerry Cohn, New York, NY

Patent: 3,631,820
Issued: Jan. 4, 1972
Inventor: Russell E. Taber, Atlanta, GA
   A structure for displaying stacked merchandise includes a shelf or separator of more or less rigid material which is flexibly hinged by a unique spring to a back panel in such a way that that the shelf or separator will stabilize the layers of merchandise. Because of the flexible spring hinge, the shelf or separator will automatically seek a vertical position when all merchandise is removed. The device works in the following manner.