VACUUM LEAK TESTER,申请号JP19890063704-传众专利搜索

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发明名称	VACUUM LEAK TESTER
摘要
申请公布号	JPH02243934(A)	申请公布日期	1990.09.28
申请号	JP19890063704	申请日期	1989.03.17
申请人	HITACHI LTD	发明人	OGAWA KEITARO;TAKAGI MASAHIRO
分类号	G01M3/20	主分类号	G01M3/20
代理机构		代理人
主权项
地址

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