Utility knife

Details Utility knife Utility knife

1997-02-04

1998-05-26

Hyder, Philip S.

Tools and hardware

Other tools and implements

Cutting

0803

Patent

active

D03945979

REFERENCES:
patent: D305096 (1989-12-01), Tench et al.
patent: D336029 (1993-06-01), Ragland et al.
patent: D349227 (1994-08-01), Ragland et al.
patent: 4761882 (1988-08-01), Silverstein
patent: 4897920 (1990-02-01), Dunbar
patent: 4939839 (1990-07-01), Gorst
patent: 5042154 (1991-08-01), Gilbert
patent: 5426855 (1995-06-01), Keklak et al.

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