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发明名称
Камертонный преобразователь с контактным возбуждением
摘要
申请公布号
SU98261(A1)
申请公布日期
1953.11.30
申请号
SU19520447772
申请日期
1952.02.05
申请人
SHVEDCHIKOV L.K.
发明人
SHVEDCHIKOV L.K.
分类号
H01H50/74;H01H51/34;H02M7/62
主分类号
H01H50/74
代理机构
代理人
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