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发明名称
ELECTRIC HEATING ELECTRODE DEVICE FOR HYDROCARBON BASED UNDERGROUND RESOURCES
摘要
申请公布号
JPS56146590(A)
申请公布日期
1981.11.14
申请号
JP19800051164
申请日期
1980.04.14
申请人
MITSUBISHI ELECTRIC CORP
发明人
KOBAYASHI TOSHIYUKI;YASUDA MASARU
分类号
E21C41/24
主分类号
E21C41/24
代理机构
代理人
主权项
地址
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