PISTON HAVING SEVERAL RINGS IN ONE GROOVE,申请号HR19990000175-传众专利搜索

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发明名称	PISTON HAVING SEVERAL RINGS IN ONE GROOVE
摘要
申请公布号	HR990175A1	申请公布日期	2001.06.30
申请号	HR19990000175	申请日期	1999.06.04
申请人		发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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