OIL-FREE SCREW VACUUM PUMP,申请号JP19890015017-传众专利搜索

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发明名称	OIL-FREE SCREW VACUUM PUMP
摘要
申请公布号	JPH02196187(A)	申请公布日期	1990.08.02
申请号	JP19890015017	申请日期	1989.01.26
申请人	HOKUETSU KOGYO CO LTD	发明人	TANAKA MASANORI
分类号	F04C18/16;F04C25/02;F04C27/00	主分类号	F04C18/16
代理机构		代理人
主权项
地址

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