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发明名称
Double-indicating double-recording gauge
摘要
申请公布号
US1878460(A)
申请公布日期
1932.09.20
申请号
US19310515859
申请日期
1931.02.14
申请人
SIMPLEX VALVE AND METER COMPANY
发明人
BORDEN MORO M.
分类号
G01D7/04
主分类号
G01D7/04
代理机构
代理人
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地址
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