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发明名称
APERFEICOAMENTO EM E REFERENTE A TUBOS E CANUDOS EM GERAL
摘要
申请公布号
BR7902947(A)
申请公布日期
1980.11.18
申请号
BR19790002947
申请日期
1979.05.14
申请人
FRISCHMANN BROMFMAN S
发明人
FRISCHMANN BROMFMAN S
分类号
F16L11/04;(IPC1-7):F16L11/04
主分类号
F16L11/04
代理机构
代理人
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