Portable electric hammer

Details Portable electric hammer Portable electric hammer

1991-03-13

1993-05-18

Douglas, Alan P.

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

D 8 61

Patent

active

D03356191

REFERENCES:
patent: D301967 (1989-07-01), Sakamoto et al.
patent: D316020 (1991-04-01), Fushiya et al.
patent: D319960 (1991-09-01), Johansson
patent: 3063508 (1962-11-01), Henry
Brochure of Hitachi Hammer Type H90; Hitachi Koki, March Showa 60 (1985).

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