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发明名称
Valve assembly
摘要
申请公布号
US2488932(A)
申请公布日期
1949.11.22
申请号
US19460640236
申请日期
1946.01.10
申请人
OIL CENTER TOOL COMPANY
发明人
PENICK ARTHUR J.
分类号
F16K5/18
主分类号
F16K5/18
代理机构
代理人
主权项
地址
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