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发明名称
APARELHO E O PROCESSO PARA OBTURAR UMA SECAO SECA DE UMA TUBULACAO
摘要
申请公布号
BR7603478(A)
申请公布日期
1977.07.05
申请号
BR19760003478
申请日期
1976.05.31
申请人
HYDROTECH INT INC
发明人
DUCAN A;CHIN A
分类号
H02G9/02;F16L1/14;F16L55/128;(IPC1-7):E02D29/06;E02D29/10
主分类号
H02G9/02
代理机构
代理人
主权项
地址
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