Driver for rotary tools
United States Patent 3088338
US Patent References:
/0981298.html
- - 0981298

Geared drill brace
- - 1544168

Driving coupling for a rotary tool
- - 1975984

Geared wrench
- - 2634630

Reversible drive for power tools
- - 2780944


Inventors:
Normand, Duchesne
Publication Date:
05/07/1963
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Assignee:
Normand, Duchesne
Primary Class:
475/270
Other Classes:
81/57.310, 475/273
International Classes:
B25B17/00; F16H3/50; F16H3/44
Foreign References:
DE482390C