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发明名称
Induktions-Beheizungsvorrichtung fuer Erdoel- bzw. Erdgasbohrungen und -leitungen mit einem ferromagnetischen Rohr
摘要
申请公布号
DE1280444(B)
申请公布日期
1968.10.17
申请号
DE1964M063012
申请日期
1964.11.05
申请人
MINISTERUL INDUSTRIEI PETROLULUI SI CHIMIEI
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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