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发明名称
Apparatus and process for underground heat and radiation treatment of bitumens
摘要
申请公布号
US3325373(A)
申请公布日期
1967.06.13
申请号
US19630321974
申请日期
1963.11.06
申请人
DEUTSCHE ERDOL AKTIENGESELLSCHAFT
发明人
SCHLICHT ERIKA MARIE ELISABETH;LANGE HANS
分类号
E21B43/24;G21D9/00
主分类号
E21B43/24
代理机构
代理人
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地址
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