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发明名称
Aligning and positioning device for piston valves
摘要
申请公布号
US1859181(A)
申请公布日期
1932.05.17
申请号
US19280323542
申请日期
1928.12.03
申请人
THOMPSON ERNEST H
发明人
THOMPSON ERNEST H.
分类号
G01F3/16
主分类号
G01F3/16
代理机构
代理人
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地址
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