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United States Patent 2252290
Inventors:
Konikoff, Robert H.
Publication Date:
08/12/1941
View Patent Images:
Download PDF 2252290
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Assignee:
Rudolf, Kind K.
Primary Class:
446/397
Other Classes:
D21/520, 5/109, 446/396, 84/95.200
International Classes:
A63H3/52
;
A63H3/00