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经营范围
发明名称
Revêtements pour égouts, tunnels, canaux et conduits similaires
摘要
申请公布号
FR1314882(A)
申请公布日期
1963.01.11
申请号
FR19620887981
申请日期
1962.02.14
申请人
WILLIAM F. REES LIMITED
发明人
分类号
E03F3/04;E21D11/10;F16L57/06
主分类号
E03F3/04
代理机构
代理人
主权项
地址
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