Title:
Expansible tool for removing lamp bases
United States Patent 2516650
US Patent References:
/0736991.html
- - 0736991

/0851137.html
- - 0851137

Wrench
- - 1390917

Nipple extractor
- - 1813567

Pipe threading device
- - 1892904


Inventors:
Jack, Shapiro
Marvin, Shapiro
Publication Date:
07/25/1950
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Assignee:
Jack, Shapiro
Marvin, Shapiro
Primary Class:
81/445
Other Classes:
72/393, 81/53.110
International Classes:
H01K3/32; H01K3/00
US Patent References:
2320435Expanding tool
2360054Insert expanding tool
Foreign References:
DE311451C