Improvements in drafting machines,申请号GB19440025546-传众专利搜索

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发明名称	Improvements in drafting machines
摘要
申请公布号	GB590515(A)	申请公布日期	1947.07.21
申请号	GB19440025546	申请日期	1944.12.20
申请人	W. F. STANLEY & CO. LIMITED;CHARLES HENRY WARNER	发明人
分类号	B43L13/06	主分类号	B43L13/06
代理机构		代理人
主权项
地址

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