Improvements in and relating to control bands or cards for use with statistical apparatus,申请号GB19310019034-传众专利搜索

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发明名称	Improvements in and relating to control bands or cards for use with statistical apparatus
摘要
申请公布号	GB390525(A)	申请公布日期	1933.04.03
申请号	GB19310019034	申请日期	1931.07.01
申请人	RICHARD SENKEL;EMIL DUEBALL	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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