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United States Patent 2181446

Inventors:
Ames, George C.
Publication Date:
11/28/1939
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Assignee:
Ames, George C.
Primary Class:
2/171.400
Other Classes:
2/209.300, 2/171.200, 2/209.500
International Classes:
A42B1/20; A42B1/22; A42C5/02; A42C5/04; A42B1/00; A42C5/00