BROENNHODEUTSTYR.,申请号NO19870002987-传众专利搜索

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发明名称	BROENNHODEUTSTYR.
摘要
申请公布号	NO872987(D0)	申请公布日期	1987.07.17
申请号	NO19870002987	申请日期	1987.07.17
申请人	GRASER, JAMES ARTHUR	发明人	GRASER, JAMES ARTHUR
分类号	E21B33/035;E21B33/047;E21B34/04;(IPC1-7):E21B/	主分类号	E21B33/035
代理机构		代理人
主权项
地址

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