Apparatus for producing stereographic drawings,申请号US19370175049-传众专利搜索

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发明名称	Apparatus for producing stereographic drawings
摘要
申请公布号	US2171894(A)	申请公布日期	1939.09.05
申请号	US19370175049	申请日期	1937.11.17
申请人	RULE JOHN T	发明人	RULE JOHN T.
分类号	B43L13/18	主分类号	B43L13/18
代理机构		代理人
主权项
地址

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