OPERATING FLUID GUIDE STRUCTURE IN EXPANSION WORK ROD,申请号JP19920340915-传众专利搜索

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发明名称	OPERATING FLUID GUIDE STRUCTURE IN EXPANSION WORK ROD
摘要
申请公布号	JPH06167183(A)	申请公布日期	1994.06.14
申请号	JP19920340915	申请日期	1992.11.30
申请人	TONE CHIKA GIJUTSU KK;SEIKO KOGYO KK;SANWA KIZAI CO LTD	发明人	BO NAOKI;NAKAMURA YOSHIHIKO;SHITOMI YASUJI;HAMANO MAMORU;HIRAKAWA ETSUO
分类号	E02D3/12;E21B17/07;E21B21/02;(IPC1-7):E21B21/02	主分类号	E02D3/12
代理机构		代理人
主权项
地址

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