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发明名称
Apparatus for testing filters
摘要
申请公布号
US2072872(A)
申请公布日期
1937.03.09
申请号
US19330696051
申请日期
1933.10.31
申请人
LEO FINKELSTEIN
发明人
FINKELSTEIN LEO
分类号
A62B27/00
主分类号
A62B27/00
代理机构
代理人
主权项
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