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发明名称
Indicating device
摘要
申请公布号
US2016149(A)
申请公布日期
1935.10.01
申请号
US19330681325
申请日期
1933.07.20
申请人
GENERAL ELECTRIC COMPANY
发明人
LEACH EDWARD A.
分类号
H03J1/14
主分类号
H03J1/14
代理机构
代理人
主权项
地址
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