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发明名称
ELECTRICAL APPARATUS
摘要
申请公布号
CA333436(A)
申请公布日期
1933.06.20
申请号
CAD333436
申请日期
申请人
THE PIONEER INSTRUMENT COMPANY
发明人
ADOLF URFER
分类号
主分类号
代理机构
代理人
主权项
地址
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