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发明名称
Detecting and indicating device
摘要
申请公布号
US2018540(A)
申请公布日期
1935.10.22
申请号
US19340711791
申请日期
1934.02.17
申请人
HAZELTINE CORPORATION
发明人
WHEELER HAROLD A.
分类号
H03D1/10;H03D1/12
主分类号
H03D1/10
代理机构
代理人
主权项
地址
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