Spring powered rotary tool

Details Spring powered rotary tool Spring powered rotary tool

1978-10-02

1981-03-10

Feldbaum, Ronald

Tool driving or impacting

Means to drive tool about an axis

Means to hold and relatively rotate sections of tool shaft

185 39, E21B 300, E21B 722

Patent

active

042548357

ABSTRACT:
A spring powered rotary hand tool.

REFERENCES:
patent: 2205083 (1940-06-01), Cazes
patent: 2385963 (1945-10-01), Beard
patent: 3241169 (1966-03-01), Windward
patent: 3744592 (1973-07-01), Neuman
patent: 3859749 (1975-01-01), Morin et al.

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