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发明名称
Drainage control elements for paper machines
摘要
申请公布号
US3352749(A)
申请公布日期
1967.11.14
申请号
US19660540895
申请日期
1966.04.07
申请人
NORTON COMPANY
发明人
PERRY JAMES H.
分类号
D21F1/48;D21F1/52
主分类号
D21F1/48
代理机构
代理人
主权项
地址
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