MANHOLE COVER,申请号GB19800032144-传众专利搜索

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发明名称	MANHOLE COVER
摘要
申请公布号	GB2062162(B)	申请公布日期	1984.01.04
申请号	GB19800032144	申请日期	1980.10.06
申请人	SYBRON CORP	发明人
分类号	B65D90/10;F16J13/18;F16J13/20;(IPC1-7):F16J13/20	主分类号	B65D90/10
代理机构		代理人
主权项
地址

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