Device to make the drains in general airtight and in particular those on the street during the absence of any drain water,申请号IT19900082005-传众专利搜索

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发明名称	Device to make the drains in general airtight and in particular those on the street during the absence of any drain water
摘要
申请公布号	IT1243639(B)	申请公布日期	1994.06.16
申请号	IT19900082005	申请日期	1990.07.17
申请人	SAMMARTANO GASPARE	发明人	SAMMARTANO GASPARE
分类号	E03F;(IPC1-7):E03F	主分类号	E03F
代理机构		代理人
主权项
地址

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