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发明名称
Differential pressure indicator
摘要
申请公布号
US2850901(A)
申请公布日期
1958.09.09
申请号
US19530400683
申请日期
1953.12.28
申请人
THE PURE OIL COMPANY
发明人
PROCTOR RONALD R.
分类号
G01L7/04
主分类号
G01L7/04
代理机构
代理人
主权项
地址
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