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经营范围
发明名称
Power measuring instrument
摘要
申请公布号
US2919406(A)
申请公布日期
1959.12.29
申请号
US19550524388
申请日期
1955.07.26
申请人
LANDIS & GYR, A. G.
发明人
TSCHAPPU FRED
分类号
G01R11/40
主分类号
G01R11/40
代理机构
代理人
主权项
地址
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