Method and apparatus for producing perforated films,申请号GB19790017936-传众专利搜索

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发明名称	Method and apparatus for producing perforated films
摘要
申请公布号	GB2021479(A)	申请公布日期	1979.12.05
申请号	GB19790017936	申请日期	1979.05.23
申请人	ETHYL CORP	发明人
分类号	B29C59/00;A61F13/15;A61F13/49;A61F13/511;B26F1/26;B29C45/00;B29C51/00;B29C51/10;B29C51/22;(IPC1-7):B29D7/22	主分类号	B29C59/00
代理机构		代理人
主权项
地址

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