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United States Patent 2322913

Inventors:
Best, Frank C.
Lawler, Jack A.
Publication Date:
06/29/1943
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Assignee:
Best, Frank C.
Lawler, Jack A.
Primary Class:
417/298
Other Classes:
310/34, 417/296, 417/417, 318/134
International Classes:
F02M37/08