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发明名称
CLASSIFICATION APPARATUS
摘要
申请公布号
CA330523(A)
申请公布日期
1933.02.28
申请号
CAD330523
申请日期
申请人
THE DORR COMPANY
发明人
SAMUEL I. BOUSMAN;JOHN H. V. FINNEY
分类号
主分类号
代理机构
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