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United States Patent 3533438
Inventors:
Smith, Stuart B.
Publication Date:
10/13/1970
View Patent Images:
Download PDF 3533438
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Assignee:
John, Woolley W.
Primary Class:
137/512.100
Other Classes:
137/601.200, 137/515.500, 137/513, 137/512.500
International Classes:
F16K15/03
;
F16K15/02
; F16K15/03
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