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发明名称
APPARATUS FOR CLASSIFYING SHEET MATERIAL
摘要
申请公布号
CA458531(A)
申请公布日期
1949.08.02
申请号
CAD458531
申请日期
申请人
THE AETNA-STANDARD ENGINEERING COMPANY
发明人
CLARENCE L. TAYLOR
分类号
主分类号
代理机构
代理人
主权项
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