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发明名称
Meter seal
摘要
申请公布号
US2284511(A)
申请公布日期
1942.05.26
申请号
US19390291557
申请日期
1939.08.23
申请人
PITTSBURGH EQUITABLE METER COMPANY
发明人
CHRISMAN HORACE
分类号
G01F3/12
主分类号
G01F3/12
代理机构
代理人
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