Internal reverse taper expanding bit reamer
United States Patent 2638948
US Patent References:
Boring tool
2074605

Adjustable wrench
1690018

N/A
0915184

N/A
0299991


Inventors:
Lee, White George
Publication Date:
05/19/1953
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Assignee:
Lee, White George
Primary Class:
82/1.400
International Classes:
F16B13/13