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经营范围
发明名称
Single contact electric socket
摘要
申请公布号
US1978115(A)
申请公布日期
1934.10.23
申请号
US19330699426
申请日期
1933.11.23
申请人
ROPER JOHN M
发明人
ROPER JOHN M.
分类号
H01R33/46
主分类号
H01R33/46
代理机构
代理人
主权项
地址
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