Tools and hardware – Other tools and implements – Screwdriver type
Patent
1998-07-30
1999-11-02
Hyder, Philip S.
Tools and hardware
Other tools and implements
Screwdriver type
D8105, 0804
Patent
active
D04159446
REFERENCES:
patent: 4010663 (1977-03-01), Rydberg
patent: 4327790 (1982-05-01), Stevens et al.
patent: 4440048 (1984-04-01), Stevens et al.
patent: 4476751 (1984-10-01), Mishima
patent: 4815346 (1989-03-01), Littlehorn
patent: 5803584 (1998-09-01), Cheng
Chan Raymond Y.
Hyder Philip S.
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