Rotary machine shaft mechanical seal,申请号IT19790069398-传众专利搜索

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发明名称	Rotary machine shaft mechanical seal
摘要
申请公布号	IT1192792(B)	申请公布日期	1988.05.04
申请号	IT19790069398	申请日期	1979.12.13
申请人	HITACHI LTD	发明人	HIROSHI INOUE
分类号	F16J;(IPC1-7):F16J/	主分类号	F16J
代理机构		代理人
主权项
地址

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