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发明名称
Tapafugeo
摘要
申请公布号
BR9500744(A)
申请公布日期
1997.08.05
申请号
BR1995PI00744
申请日期
1995.02.20
申请人
DA CONCEICAO MAXIMO FREDERICO
发明人
CONCEICAO MAXIMO FREDERICO DA
分类号
E21B33/00;(IPC1-7):E21B33/00
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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