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发明名称
HYDROSOLUBLE POLYMERS AND THEIR USE AS ADDITIVES IN DRILLING FLUIDS
摘要
申请公布号
DE3567026(D1)
申请公布日期
1989.02.02
申请号
DE19853567026
申请日期
1985.01.28
申请人
WOLFF WALSRODE AKTIENGESELLSCHAFT
发明人
LANGE, WERNER, DR.;BOHMER, BRANISLAV, DR.
分类号
C08F220/58;(IPC1-7):C08F220/58;C09K7/02
主分类号
C08F220/58
代理机构
代理人
主权项
地址
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