ISLAND CHECK VALVE
United States Patent 3533438

Inventors:
Smith, Stuart B.
Publication Date:
10/13/1970
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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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