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发明名称
Flow meter
摘要
申请公布号
US2077444(A)
申请公布日期
1937.04.20
申请号
US19340739985
申请日期
1934.08.15
申请人
WALKER WILLIAM C
发明人
WALKER WILLIAM C.
分类号
G01F1/37
主分类号
G01F1/37
代理机构
代理人
主权项
地址
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