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发明名称
Method and apparatus for treating pulp
摘要
申请公布号
US1827280(A)
申请公布日期
1931.10.13
申请号
US19290416254
申请日期
1929.12.24
申请人
RUBBER SURFACERS, INC.
发明人
CARNAHAN GEORGE HOLMES
分类号
B02C1/14
主分类号
B02C1/14
代理机构
代理人
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