Internal two-zone heat control for plastics extruders,申请号US19470764134-传众专利搜索

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发明名称	Internal two-zone heat control for plastics extruders
摘要
申请公布号	US2449355(A)	申请公布日期	1948.09.14
申请号	US19470764134	申请日期	1947.07.28
申请人	THE DOW CHEMICAL COMPANY	发明人	WILEY RALPH M.;DETTMER EDWARD V.
分类号	B29C47/84	主分类号	B29C47/84
代理机构		代理人
主权项
地址

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