Method and apparatus for making grommets,申请号US19530334694-传众专利搜索

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发明名称	Method and apparatus for making grommets
摘要
申请公布号	US2753678(A)	申请公布日期	1956.07.10
申请号	US19530334694	申请日期	1953.02.02
申请人	UNITED STATES STEEL CORPORATION	发明人	HANSEN HARRY J.;WIEDEMANN ARVIN P.
分类号	B29D30/48;D07B5/00	主分类号	B29D30/48
代理机构		代理人
主权项
地址

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