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发明名称
Electricity meter
摘要
申请公布号
US1798138(A)
申请公布日期
1931.03.31
申请号
US19290332703
申请日期
1929.01.15
申请人
LANDIS & GYR, A.-G.
发明人
BEUSCH WILLI
分类号
G01R11/30
主分类号
G01R11/30
代理机构
代理人
主权项
地址
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