Polytetrafluoroethylene packing material and process for making same,申请号US19500171537-传众专利搜索

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发明名称	Polytetrafluoroethylene packing material and process for making same
摘要
申请公布号	US2578523(A)	申请公布日期	1951.12.11
申请号	US19500171537	申请日期	1950.06.30
申请人	E. I. DU PONT DE NEMOURS AND COMPANY	发明人	LLEWELLYN WALTER E.
分类号	B29B9/12;F16J15/20	主分类号	B29B9/12
代理机构		代理人
主权项
地址

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