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发明名称
Demand meter
摘要
申请公布号
US2149410(A)
申请公布日期
1939.03.07
申请号
US19370144823
申请日期
1937.05.26
申请人
MORRIS WEISMAN
发明人
WEISMAN MORRIS
分类号
G01R11/60
主分类号
G01R11/60
代理机构
代理人
主权项
地址
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