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发明名称
Muffling seals of elastomer material suitable for manhole covers
摘要
申请公布号
IT1260825(B)
申请公布日期
1996.04.22
申请号
IT1992VE00024
申请日期
1992.06.16
申请人
发明人
分类号
C08G;(IPC1-7):C08G
主分类号
C08G
代理机构
代理人
主权项
地址
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