Portable rotary grinder

Details Portable rotary grinder Portable rotary grinder

1990-12-26

1993-02-09

Douglas, Alan P.

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

Patent

active

D03330770

REFERENCES:
patent: D269847 (1983-07-01), Izumisawa
patent: D286548 (1986-11-01), Hsieh
patent: D310160 (1990-08-01), Patel
patent: D310470 (1990-09-01), Tohdoh
patent: D320727 (1991-10-01), Fushiya et al.
patent: D323275 (1992-01-01), Sasaki et al.
patent: D324699 (1992-03-01), Ohashi

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