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发明名称
PREVENTING SO2 RESIN FORMATION WITH A SULFOLANE
摘要
申请公布号
US3474030(A)
申请公布日期
1969.10.21
申请号
USD3474030
申请日期
1967.10.09
申请人
PHILLIPS PETROLEUM CO.
发明人
DONALD M. LITTLE
分类号
C07C7/08;(IPC1-7):C10G21/10;C10G21/22
主分类号
C07C7/08
代理机构
代理人
主权项
地址
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