MECHANICAL DEVICES FOR TEACHING HARMONICA PLAYING,申请号CAD477568-传众专利搜索

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发明名称	MECHANICAL DEVICES FOR TEACHING HARMONICA PLAYING
摘要
申请公布号	CA477568(A)	申请公布日期	1951.10.09
申请号	CAD477568	申请日期
申请人	JAMES L. SCHOLL	发明人	JAMES L. SCHOLL
分类号		主分类号
代理机构		代理人
主权项
地址

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