Improvements in stenographic recording machines,申请号GB19370034438-传众专利搜索

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发明名称	Improvements in stenographic recording machines
摘要
申请公布号	GB498713(A)	申请公布日期	1939.01.12
申请号	GB19370034438	申请日期	1937.12.13
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人
分类号	B41J3/26	主分类号	B41J3/26
代理机构		代理人
主权项
地址

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