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经营范围
发明名称
Electric condenser
摘要
申请公布号
US1921086(A)
申请公布日期
1933.08.08
申请号
US19310529072
申请日期
1931.04.10
申请人
RADIO PATENTS CORPORATION
发明人
MACDONALD DUNCAN MACKENZIE
分类号
H01G4/22
主分类号
H01G4/22
代理机构
代理人
主权项
地址
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