Letter opener

Details Letter opener Letter opener

1993-05-17

1995-02-14

Feifer, Melvin B.

Tools and hardware

Other tools and implements

Cutting

Patent

active

D03553477

REFERENCES:
patent: D256883 (1980-09-01), Wharmby
patent: D306394 (1990-03-01), Koenig
patent: D329584 (1992-09-01), Shevin et al.
patent: D342008 (1993-12-01), Lage et al.
patent: 3009248 (1961-11-01), Tilly
patent: 5285577 (1994-02-01), Carney
Handi-Line 1992 Brochure, p. 25.
HKE Nov. 1988 p. 211 (Letter Opener, Model W-1000).

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