PRESSURE BACK UP SEAL,申请号JP19790094989-传众专利搜索

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发明名称	PRESSURE BACK UP SEAL
摘要
申请公布号	JPS5533979(A)	申请公布日期	1980.03.10
申请号	JP19790094989	申请日期	1979.07.27
申请人	HITACHI LTD	发明人	FUJISHIMA SUSUMU
分类号	F16J1/09;F16J1/00;F16J15/46;F16J15/48	主分类号	F16J1/09
代理机构		代理人
主权项
地址

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