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经营范围
发明名称
Tasteninstrument mit Doppelklaviatur und Oktavkupplung
摘要
申请公布号
DE557925(C)
申请公布日期
1932.08.30
申请号
DED557925D
申请日期
1930.01.24
申请人
C. BECHSTEIN;PIANOFORTEFABRIK AKT.-GES.;EMANUEL MOOR
发明人
分类号
G10C3/30
主分类号
G10C3/30
代理机构
代理人
主权项
地址
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