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发明名称
DRAIN VALVE CONNECTING MEANS
摘要
申请公布号
CA838905(A)
申请公布日期
1970.04.14
申请号
CAD838905
申请日期
申请人
STEPHEN A. YOUNG
发明人
WILLIAM E. POLITZ
分类号
主分类号
代理机构
代理人
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