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经营范围
发明名称
PIPE TO BE LAID IN THE PAVEMENT OF A FLOOR AND IN FINISHED PART ELEMENTS
摘要
申请公布号
PT72934(A)
申请公布日期
1981.05.01
申请号
PT19810072934
申请日期
1981.04.27
申请人
发明人
分类号
E04B1/00;F24D3/14;(IPC1-7):F17D/
主分类号
E04B1/00
代理机构
代理人
主权项
地址
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