Portable electric drill

Details Portable electric drill Portable electric drill

1989-08-02

1992-02-18

Holtje, Nelson C.

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

Patent

active

D03239616

REFERENCES:
patent: D104623 (1937-05-01), Decker
patent: D111234 (1938-09-01), Albertson
patent: D131659 (1942-03-01), Decker
patent: D150531 (1948-08-01), Albertson
patent: D205012 (1966-06-01), Henggeler
patent: D238970 (1976-02-01), Merion
patent: D243742 (1977-03-01), House, II et al.
patent: D298908 (1988-12-01), Clemens
patent: D301496 (1989-06-01), Yonesawa et al.

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