Pipe line scraper,申请号US19500158507-传众专利搜索

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法人/股东/高管

发明名称	Pipe line scraper
摘要
申请公布号	US2636202(A)	申请公布日期	1953.04.28
申请号	US19500158507	申请日期	1950.04.27
申请人	HINZMAN JAMES E	发明人	HINZMAN JAMES E.
分类号	B08B9/04;B08B9/057	主分类号	B08B9/04
代理机构		代理人
主权项
地址

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