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发明名称
Drehschalter mit kegeliger Schaltwalze
摘要
申请公布号
DE581447(C)
申请公布日期
1933.07.27
申请号
DE1931B152887D
申请日期
1931.11.08
申请人
GEBR. BERKER
发明人
分类号
H01H19/24
主分类号
H01H19/24
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代理人
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