Envelope opener

Details Envelope opener Envelope opener

1990-11-15

1992-09-08

Ansher, Bernard

Tools and hardware

Other tools and implements

Cutting

Patent

active

D03291839

REFERENCES:
patent: D159935 (1950-08-01), Simon
patent: D240190 (1976-06-01), Cleveland
patent: D256883 (1980-10-01), Wharmby
patent: D301138 (1989-05-01), Lee
patent: D306394 (1990-03-01), Koehig
patent: 1553449 (1925-09-01), Kennedy
patent: 2439639 (1948-04-01), Tilly
patent: 2535555 (1950-12-01), Tilly
patent: 2599439 (1952-06-01), Drake
patent: 3009248 (1961-11-01), Tilly
patent: 3028670 (1962-04-01), Tilly
patent: 3290780 (1966-12-01), Oehlert
Quick Point Catalog 1989 p. 53 Quick Point Inc Fenton, Mo.

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