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发明名称
Drehzahlwechselgetriebe
摘要
申请公布号
DE519485(C)
申请公布日期
1931.02.28
申请号
DE1929P061534D
申请日期
1929.10.27
申请人
POLYPHONWERKE AKT.-GES.
发明人
分类号
F16H3/20;F16H3/34;G11B15/44;G11B19/20
主分类号
F16H3/20
代理机构
代理人
主权项
地址
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