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发明名称
Mechanismus für Klein-Pianos.
摘要
申请公布号
AT150080(B)
申请公布日期
1937.06.25
申请号
ATD150080
申请日期
1936.04.29
申请人
JULIUS CARL HOFMANN
发明人
JULIUS CARL HOFMANN
分类号
主分类号
代理机构
代理人
主权项
地址
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