Tools and hardware – Other tools and implements – Screwdriver type
Patent
1991-11-06
1994-03-01
Ansher, Bernard
Tools and hardware
Other tools and implements
Screwdriver type
Patent
active
D03446646
REFERENCES:
patent: D26157 (1896-10-01), Lee
patent: D56812 (1920-12-01), Harris
patent: D229390 (1973-11-01), Hart
patent: 2788816 (1957-04-01), Dargols
patent: 4003418 (1977-01-01), Andersson
Ansher Bernard
Hyder Philip
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