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发明名称
Apparatus for impelling objects within a pipeline
摘要
申请公布号
US2948142(A)
申请公布日期
1960.08.09
申请号
US19570659848
申请日期
1957.05.17
申请人
THE STANDARD OIL COMPANY
发明人
JR. MARLIN U. ZIMMERMAN,
分类号
F16L55/46;G01F25/00
主分类号
F16L55/46
代理机构
代理人
主权项
地址
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