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United States Patent 2329029
Inventors:
Bernhard, Bargen
Bargen, William J.
Publication Date:
09/07/1943
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Download PDF 2329029
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Assignee:
Bernhard, Bargen
Bargen, William J.
Primary Class:
312/233
Other Classes:
312/300, 312/208.100
International Classes:
A47B21/02
;
A47B21/00