Letter opener

Details Letter opener Letter opener

1997-07-08

1999-02-09

Holtje, Martie K.

Tools and hardware

Other tools and implements

Cutting

D8102, 0803

Patent

active

D04053397

REFERENCES:
patent: 73674 (1868-01-01), Timby
patent: 314801 (1885-03-01), Clausen
patent: D333773 (1993-03-01), Schapiro, Jr.
patent: D344227 (1994-02-01), Hsu
patent: D365508 (1995-12-01), Koch
patent: 734688 (1903-07-01), Farley et al.
patent: 1131141 (1915-03-01), Kalenborn
patent: 2442694 (1948-06-01), Keiser
patent: 2610399 (1952-09-01), Adams et al.
patent: 2750668 (1956-06-01), Tarrazi

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