Valve construction
United States Patent 1934314

Inventors:
Lawier, James J.
Publication Date:
11/07/1933
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Assignee:
Lawier, James J.
Primary Class:
251/86
Other Classes:
251/334, 210/497.300, 137/451, 251/357, 210/431, 236/42
International Classes:
F16K1/34; F16K1/32