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发明名称
Valve operating handle
摘要
申请公布号
US1825364(A)
申请公布日期
1931.09.29
申请号
US19310513865
申请日期
1931.02.06
申请人
DIEMOLDING CORPORATION
发明人
ROSS WALLACE B.
分类号
F16K31/60
主分类号
F16K31/60
代理机构
代理人
主权项
地址
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