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发明名称
PROCESSO QUE TORNA NULO O DESGASTE DE SUPERFICIES EM CONTATO PERMANENTE OU INTERMITENTE,DISPOSITIVO ANTIFRICCAO E MANCAL PARA GUIA E/OU APOIO DE UMA SUPERFICIE DIAMANTIFERA
摘要
申请公布号
BR7905161(A)
申请公布日期
1980.05.06
申请号
BR19797905161
申请日期
1979.08.10
申请人
COMP FRANCAISE PETROLES
发明人
CORTES A
分类号
E21B4/02;F16C33/12;F16C33/24;F16C37/00;(IPC1-7):F16C17/00
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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