Improvements in recording instruments,申请号GB19350012128-传众专利搜索

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发明名称	Improvements in recording instruments
摘要
申请公布号	GB455614(A)	申请公布日期	1936.10.23
申请号	GB19350012128	申请日期	1935.04.23
申请人	THE LEA RECORDER COMPANY LIMITED;JAMES EDWARD LEA	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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