Improvements in or relating to Perspective Drawing Apparatus.,申请号GB19670018645-传众专利搜索

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发明名称	Improvements in or relating to Perspective Drawing Apparatus.
摘要
申请公布号	GB1195053(A)	申请公布日期	1970.06.17
申请号	GB19670018645	申请日期	1967.04.22
申请人	CHRISTOPHER GEORGE WILKINS	发明人	CHRISTOPHER GEORGE WILKINS
分类号	B43L13/14	主分类号	B43L13/14
代理机构		代理人
主权项
地址

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