Pipe-line scraper trap assembly,申请号US19480063013-传众专利搜索

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发明名称	Pipe-line scraper trap assembly
摘要
申请公布号	US2589170(A)	申请公布日期	1952.03.11
申请号	US19480063013	申请日期	1948.12.02
申请人	STANDARD OIL DEVELOPMENT COMPANY	发明人	NOOY BURTON VER
分类号	F16L45/00;F16L55/46	主分类号	F16L45/00
代理机构		代理人
主权项
地址

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