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发明名称
Piston construction
摘要
申请公布号
US2392182(A)
申请公布日期
1946.01.01
申请号
US19430491526
申请日期
1943.06.19
申请人
CRANE PACKING COMPANY
发明人
PAYNE FRANK E.
分类号
F16J15/48
主分类号
F16J15/48
代理机构
代理人
主权项
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