Portable electric impact driver

Details Portable electric impact driver Portable electric impact driver

1992-05-04

1993-12-21

Douglas, Alan P.

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

Patent

active

D03424308

REFERENCES:
patent: D159044 (1950-06-01), Bushnell
patent: D241705 (1976-10-01), Kotone
patent: D295714 (1988-05-01), Sasaki et al.
patent: D315855 (1991-04-01), Fushiya et al.
patent: D320917 (1991-10-01), Fushiya et al.
patent: D329580 (1992-09-01), Sasaki et al.
Kabushiki Kaisha Hitachi Seisakusho (Hitachi, Ltd.) Catalog Cordless Impact Driver, published Apr. 1991.

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