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发明名称
METHOD TO IMPROVE PRODUCTION OF SULFUR
摘要
申请公布号
US3623770(A)
申请公布日期
1971.11.30
申请号
USD3623770
申请日期
1969.05.21
申请人
HALLIBURTON CO.
发明人
HUGH J. AYRES;RONNEY R. KOCH;JOHN G. COOK
分类号
E21B43/285;(IPC1-7):E21C41/14
主分类号
E21B43/285
代理机构
代理人
主权项
地址
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