INTERNAL GRINDING DEVICE FOR PIPINGS OF LARGE DIAMETER,申请号JP19910176934-传众专利搜索

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发明名称	INTERNAL GRINDING DEVICE FOR PIPINGS OF LARGE DIAMETER
摘要
申请公布号	JPH0569293(A)	申请公布日期	1993.03.23
申请号	JP19910176934	申请日期	1991.07.17
申请人	MITSUBISHI HEAVY IND LTD;SEIRYO ENG CO LTD	发明人	MOTOKI KIYOSHI;KOTANI MASASHI;NAGAYAMA TATSUNOBU;KAMO KAZUHIKO;FUJIMOTO OSAMU;ISHIDO TOSHIFUMI
分类号	B23K37/08;B24B5/40	主分类号	B23K37/08
代理机构		代理人
主权项
地址

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