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发明名称
CONCENTRATING APPARATUS
摘要
申请公布号
CA515271(A)
申请公布日期
1955.08.02
申请号
CAD515271
申请日期
申请人
NIAGARA BLOWER COMPANY
发明人
WALTER KALS
分类号
主分类号
代理机构
代理人
主权项
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