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发明名称
Valve-plug unit for drain assemblies
摘要
申请公布号
US2649592(A)
申请公布日期
1953.08.25
申请号
US19500147191
申请日期
1950.03.02
申请人
CHASE BRASS & COPPER CO. INCORPORATED
发明人
MCGARRY JAMES W.
分类号
E03C1/23
主分类号
E03C1/23
代理机构
代理人
主权项
地址
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