Engraver's gum,申请号US19400349356-传众专利搜索

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发明名称	Engraver's gum
摘要
申请公布号	US2358189(A)	申请公布日期	1944.09.12
申请号	US19400349356	申请日期	1940.08.01
申请人	THE B. F. GOODRICH COMPANY	发明人	SPRIGG EDWARD A.;MACY EDGAR O.
分类号	B41N1/12	主分类号	B41N1/12
代理机构		代理人
主权项
地址

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