NEGATIVE PRESSURE SUCTION TYPE ROCK DRILL,申请号JP19840230311-传众专利搜索

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发明名称	NEGATIVE PRESSURE SUCTION TYPE ROCK DRILL
摘要
申请公布号	JPS61109674(A)	申请公布日期	1986.05.28
申请号	JP19840230311	申请日期	1984.11.02
申请人	RANDOMAAKU UESUTO:KK	发明人	OOYAMA NOBUO
分类号	B25D9/04;B25D9/08;B25D9/20;B25D17/24	主分类号	B25D9/04
代理机构		代理人
主权项
地址

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