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发明名称
AIR CLEANING APPARATUS
摘要
申请公布号
CA383592(A)
申请公布日期
1939.08.22
申请号
CAD383592
申请日期
申请人
SCHMIEG SHEET METAL WORKS
发明人
JOHN D. SCHMIEG
分类号
主分类号
代理机构
代理人
主权项
地址
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