Electric screwdriver

Details Electric screwdriver Electric screwdriver

1992-02-25

1993-11-23

Douglas, Alan P.

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

Patent

active

D03415317

REFERENCES:
patent: D323274 (1992-01-01), Sasaki
patent: D325502 (1992-04-01), Rahm et al.
patent: D325857 (1992-05-01), Hasegawa et al.
patent: D327827 (1992-07-01), Kwan
Panasonic catalog, published May 1, 1990 on electric screwdrivers.
Hios catalog, published Aug. 1990 on electric screwdrivers.

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