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United States Patent 1454985
Inventors:
Tate, William J.
Publication Date:
05/15/1923
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Download PDF 1454985
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Assignee:
Tate, William J.
Primary Class:
312/300
Other Classes:
312/324, 40/657
International Classes:
A47B53/00
;
A47G29/10
;
A47G29/00