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Valve mechanism
United States Patent 1496628
Inventors:
Burridge, Hawley Charles
Publication Date:
06/03/1924
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Download PDF 1496628
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Assignee:
Burridge, Hawley Charles
Primary Class:
137/217
Other Classes:
137/526, 251/247
International Classes:
F16K17/194
;
F16K17/18