Title:
Extensible tool shank
United States Patent 2438633
US Patent References:
/0972989.html
- - 0972989

/1203853.html
- - 1203853

Coupling for flexible shafting
- - 1566849

Lamp stand
- - 1919114

Operating tool for high tension electric lines
- - 2291593


Inventors:
John, Condor
Publication Date:
03/30/1948
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Assignee:
John, Condor
Primary Class:
403/107
Other Classes:
81/177.200
International Classes:
B25G1/04; B25G1/00