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United States Patent 2490147
US Patent References:
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- - 1124591


Inventors:
Minton, Leslie A.
Publication Date:
12/06/1949
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Assignee:
Minton, Leslie A.
Primary Class:
281/42
Other Classes:
402/80R, 402/80L
International Classes:
B42D9/00
Foreign References:
DE245665C
GB458044A