Envelope opener

Details Envelope opener Envelope opener

1993-10-01

1995-02-07

Thompson, Martie

Tools and hardware

Other tools and implements

Cutting

D 8102, D19 72

Patent

active

D03551083

REFERENCES:
patent: 306394 (1990-03-01), Koenig
patent: D316273 (1991-04-01), Tsuji
patent: 329183 (1992-09-01), Lage et al.
patent: 329184 (1992-09-01), Lage et al.
patent: D329584 (1992-09-01), Shevin et al.
patent: D341307 (1993-11-01), Lage et al.
patent: 3028670 (1962-04-01), Tilly
Quick Point Catalog, 1992, Title page and pages 16-22.

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