VACUUM DEVICE AND USAGE THEREOF,申请号JP19890295053-传众专利搜索

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发明名称	VACUUM DEVICE AND USAGE THEREOF
摘要
申请公布号	JPH03157585(A)	申请公布日期	1991.07.05
申请号	JP19890295053	申请日期	1989.11.15
申请人	HITACHI LTD	发明人	HASHIMOTO TAKAHITO
分类号	F16K51/02;F04B37/16	主分类号	F16K51/02
代理机构		代理人
主权项
地址

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