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经营范围
发明名称
Bleaching pulp
摘要
申请公布号
US2127765(A)
申请公布日期
1938.08.23
申请号
US19370155341
申请日期
1937.07.23
申请人
NIAGARA ALKALI COMPANY
发明人
CASCIANI FERRI
分类号
D21C9/12
主分类号
D21C9/12
代理机构
代理人
主权项
地址
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