Combination drafting implement,申请号US19330683740-传众专利搜索

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发明名称	Combination drafting implement
摘要
申请公布号	US2054420(A)	申请公布日期	1936.09.15
申请号	US19330683740	申请日期	1933.08.05
申请人	EAGLE PENCIL CO. INC.	发明人	HOCHMAN JULIUS C.
分类号	B43L7/00	主分类号	B43L7/00
代理机构		代理人
主权项
地址

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