Tools and hardware – Other tools and implements – Screwdriver type
Patent
1981-07-09
1984-01-17
Lucas, Susan J.
Tools and hardware
Other tools and implements
Screwdriver type
D 8 71, D0804
Patent
active
D02722305
REFERENCES:
patent: 455101 (1891-06-01), Heydenreich
patent: 1256139 (1918-02-01), Kietlinski
patent: 4139036 (1979-02-01), Regan et al.
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