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发明名称
METODO E APARELHO PARA FAZER ABERTURAS EM REVESTIMENTO DE TUBULACOES SUBTERRANEAS
摘要
申请公布号
BR8302305(A)
申请公布日期
1984.12.11
申请号
BR19830002305
申请日期
1983.05.04
申请人
INSITUFORM INTERNATIONAL INC.
发明人
ERIC WOOD
分类号
(IPC1-7):E02D29/10
主分类号
(IPC1-7):E02D29/10
代理机构
代理人
主权项
地址
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