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经营范围
发明名称
Prevention of deposition of pitch in papermaking
摘要
申请公布号
US3081219(A)
申请公布日期
1963.03.12
申请号
US19600007743
申请日期
1960.02.10
申请人
ROHM & HAAS COMPANY
发明人
DRENNEN THOMAS J.;KELLEY LOUIS E.
分类号
D21H11/06;D21H21/02
主分类号
D21H11/06
代理机构
代理人
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地址
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