Dispositif pour accroître le rayon d'action des mains sur les instruments de musique usuels à touches,申请号FRD699131-传众专利搜索

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发明名称	Dispositif pour accroître le rayon d'action des mains sur les instruments de musique usuels à touches
摘要
申请公布号	FR699131(A)	申请公布日期	1931.02.10
申请号	FRD699131	申请日期	1930.07.18
申请人		发明人	DEUTSCH LEONHARD
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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