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发明名称
PAPERMAKING PROCESS
摘要
申请公布号
CA808531(A)
申请公布日期
1969.03.18
申请号
CAD808531
申请日期
申请人
NALCO CHEMICAL COMPANY
发明人
PERRY S. TARR
分类号
主分类号
代理机构
代理人
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