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发明名称
GASEOUS EXTRACTION OF OIL SHALES AND TAR SANDS
摘要
申请公布号
NZ183105(A)
申请公布日期
1978.09.20
申请号
NZ19770183105
申请日期
1977.01.18
申请人
COAL INDUSTRY LTD
发明人
WILLIAMS D;MARTIN T
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主分类号
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