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United States Patent 2597426
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Inventors:
Auckley, Lee E.
Publication Date:
05/20/1952
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Assignee:
Auckley, Lee E.
Primary Class:
40/641
Other Classes:
40/359, 40/377, 24/67.700, 40/341
International Classes:
B42F19/00
US Patent References:
1133388
1421219
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