Adjustable drafting triangle,申请号US19360115458-传众专利搜索

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发明名称	Adjustable drafting triangle
摘要
申请公布号	US2090694(A)	申请公布日期	1937.08.24
申请号	US19360115458	申请日期	1936.12.12
申请人	HANS MEYER	发明人	MEYER HANS
分类号	B43L7/12	主分类号	B43L7/12
代理机构		代理人
主权项
地址

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