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发明名称
Valve and similar structure and method of producing it
摘要
申请公布号
US1909478(A)
申请公布日期
1933.05.16
申请号
US19280326797
申请日期
1928.12.18
申请人
EVERLASTING VALVE COMPANY
发明人
WILSON WYLIE G.
分类号
F16K1/42
主分类号
F16K1/42
代理机构
代理人
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地址
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