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发明名称
SISTEMA DE AQUECIMENTO ELETRICO
摘要
申请公布号
BR8803489(A)
申请公布日期
1990.03.01
申请号
BR1988PI03489
申请日期
1988.07.11
申请人
ORS DEVELOPMENT CORPORATION
发明人
JACK E. BRIDGES;VINCENT YOUNG
分类号
E21B36/04;(IPC1-7):E21B36/04
主分类号
E21B36/04
代理机构
代理人
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