Variable speed drill

Details Variable speed drill Variable speed drill

1992-08-26

1994-01-25

Douglas, Alan P.

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

Patent

active

D03435601

REFERENCES:
patent: D168215 (1952-11-01), Doeden
patent: D330496 (1992-10-01), Albert et al.
patent: 3935909 (1976-02-01), Mabuchi et al.
patent: 4878404 (1989-11-01), Liao
Color photographs of Mini-Drill, Model No. AD-12--Unidentified Manufacturer.
Color photographs of Dremel.RTM. Motor Tool.RTM., Model 270-5.
Color photographs of Rechargeable Mini Drill AD-88, Unidentified Manufacturer.
Applicraft Mini-Perceuse P5, Ref. No. 50100.

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