Extensible paper fastening device

Details Extensible paper fastening device Extensible paper fastening device

B - Operations, Transporting

42

F

129/14

B42F 3/00 (2006.01) B42F 13/10 (2006.01)

Patent

CA 1061215

Application of WALTER ??ERY LAND for UNITED STATES LETTERS PATENT on A PAPER FASTENER ABSTRACT OF THE DISCLOSURE A quick-release paper fastener of polypropylene-ethylene copolymer for stacks of two holed sheets and comprising a tongue base member and a compressor which has resilient hooks provided with transverse V-shaped ribs on the undersurface which co-oper- ates with a central V-shaped groove on the on the outer surface of the tongue to provide a snap-fit locking and quick release arrangeme?? and the compressor has a transverse verse bar near each slot which engages with transverse grooves and ribs or notches on the inner surface of the tongue to prevent longitudinal slipping of the tongue when folded over in the fastened position. -I-

261840

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