Method of preparing a synthetic railway tie,申请号US19660542056-传众专利搜索

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发明名称	Method of preparing a synthetic railway tie
摘要
申请公布号	US3355534(A)	申请公布日期	1967.11.28
申请号	US19660542056	申请日期	1966.04.12
申请人	POOR & COMPANY	发明人	GROFF EMORY L.
分类号	B29C39/00;E01B3/44	主分类号	B29C39/00
代理机构		代理人
主权项
地址

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