ANNULAR AIR HAMMER DRILLING APPARATUS,申请号GB19860020774-传众专利搜索

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发明名称	ANNULAR AIR HAMMER DRILLING APPARATUS
摘要
申请公布号	GB2194570(A)	申请公布日期	1988.03.09
申请号	GB19860020774	申请日期	1986.08.28
申请人	* INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA AKADEMII NAUK SSSR;* SPETSIALNOE KONSTRUKTORSKOE BJURO SVESOJUZNOGO PROMYSHLENNOGO OBIEDINENIA SOJUZGEOTEKHNIKA	发明人	ALEXANDR DMITRIEVICH * KOSTYLEV;VLADIMIR PETROVICH * BOGINSKY;BORIS NIKOLAEVICH * SMOLYANITSKY;JURY NIKOLAEVICH * SYRYAMIN;BORIS BORISOVICH * DANILOV;DAVID IOSIFOVICH * KOGAN;VYACHESLAV NIKOLAEVICH * SAVELIEV
分类号	E21B4/14;E21B21/12;(IPC1-7):E21B4/12	主分类号	E21B4/14
代理机构		代理人
主权项
地址

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