Improvements in or relating to draughting machines of the parallelogram type,申请号GB19330005996-传众专利搜索

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发明名称	Improvements in or relating to draughting machines of the parallelogram type
摘要
申请公布号	GB411243(A)	申请公布日期	1934.06.07
申请号	GB19330005996	申请日期	1933.02.28
申请人	VIKTOR GRAF	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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