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发明名称
STEIGERUNG VON KOHLENWASSERSTOFFGEWINNUNG DURCH MODIFIKATION DER PERMEABILITAET MIT PHENOLISCHEN GELEN.
摘要
申请公布号
AT72017(T)
申请公布日期
1992.02.15
申请号
AT19850306980T
申请日期
1985.09.30
申请人
PFIZER INC.
发明人
CHANG, PING WU;MELTZ, CLIFFORD NATHANIEL;GRUETZMACHER, GORDON DWIGHT;TOTINO, ROCCO ADOLFO
分类号
E21B43/25;(IPC1-7):E21B43/25
主分类号
E21B43/25
代理机构
代理人
主权项
地址
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