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发明名称
Film cleaning device
摘要
申请公布号
US2623225(A)
申请公布日期
1952.12.30
申请号
US19470783490
申请日期
1947.11.01
申请人
CITY NATIONAL BANK AND TRUST COMPANY OF CHICAGO
发明人
FRANKEL LEO
分类号
G03D15/00
主分类号
G03D15/00
代理机构
代理人
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地址
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