Perfectionnements aux dispositifs pour pianos, commandés par pédale, permettant d'actionner simultanément deux touches,申请号FRD777591-传众专利搜索

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发明名称	Perfectionnements aux dispositifs pour pianos, commandés par pédale, permettant d'actionner simultanément deux touches
摘要
申请公布号	FR777591(A)	申请公布日期	1935.02.23
申请号	FRD777591	申请日期	1934.08.24
申请人		发明人	BRETT STANLEY REGINALD
分类号	G10C3/14	主分类号	G10C3/14
代理机构		代理人
主权项
地址

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