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发明名称
Vorrichtung zur Bedienung von Tasteninstrumenten
摘要
申请公布号
DE546389(C)
申请公布日期
1932.03.14
申请号
DE1927M102723D
申请日期
1927.12.30
申请人
RALPH MAYHEW
发明人
分类号
G10F3/00
主分类号
G10F3/00
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