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发明名称
Oil well heaters
摘要
申请公布号
GB1072905(A)
申请公布日期
1967.06.21
申请号
GB19640045374
申请日期
1964.11.06
申请人
THE DEPUTY MINISTER OF MINISTERUL INDUSTRIEI PETROLULUI SI CHIMIEL
发明人
MIRCEA DRIGA
分类号
H05B6/10
主分类号
H05B6/10
代理机构
代理人
主权项
地址
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