Utility knife

Details Utility knife Utility knife

1993-03-08

1994-08-09

Ansher, Bernard

Tools and hardware

Other tools and implements

Cutting

D 8 99

Patent

active

D03494446

REFERENCES:
patent: D234570 (1975-03-01), Craddock
patent: D244576 (1977-06-01), Van Alstine
patent: D290333 (1987-06-01), Pashley
patent: D293202 (1987-12-01), West et al.
patent: D296297 (1988-06-01), Weimann et al.
patent: D310475 (1990-09-01), Weimann
patent: D311675 (1990-10-01), Wilson et al.
patent: D319378 (1991-08-01), Wilcox
patent: 5022156 (1991-06-01), Kallens et al.
patent: 5168630 (1992-12-01), Weber

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