Fire and blow-out control,申请号US19290335629-传众专利搜索

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发明名称	Fire and blow-out control
摘要
申请公布号	US1809230(A)	申请公布日期	1931.06.09
申请号	US19290335629	申请日期	1929.01.21
申请人	RUTLAND H. BAKER	发明人	BETTINGER LOUIS M.
分类号	E21B33/06	主分类号	E21B33/06
代理机构		代理人
主权项
地址

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