Wall core scraper,申请号US19410404736-传众专利搜索

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法人/股东/高管

发明名称	Wall core scraper
摘要
申请公布号	US2315629(A)	申请公布日期	1943.04.06
申请号	US19410404736	申请日期	1941.07.30
申请人	LE BUS FRANKLIN L	发明人	BUS FRANKLIN L. LE
分类号	E21B49/06	主分类号	E21B49/06
代理机构		代理人
主权项
地址

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