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发明名称
Unidirectional meter prover
摘要
申请公布号
US3397570(A)
申请公布日期
1968.08.20
申请号
US19660557249
申请日期
1966.06.13
申请人
ESSO RESEARCH AND ENGINEERING COMPANY
发明人
PFREHM RAYMOND H.
分类号
G01F25/00
主分类号
G01F25/00
代理机构
代理人
主权项
地址
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