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发明名称
Manufacture of pulp
摘要
申请公布号
US1778199(A)
申请公布日期
1930.10.14
申请号
US19260116020
申请日期
1926.06.14
申请人
JOHN NEUMANN
发明人
NEUMANN JOHN
分类号
D21C3/00
主分类号
D21C3/00
代理机构
代理人
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