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发明名称
Film spool
摘要
申请公布号
US2391269(A)
申请公布日期
1945.12.18
申请号
US19420429969
申请日期
1942.02.09
申请人
EASTMAN KODAK COMPANY
发明人
PHILIPS HARLOW D.
分类号
G03B17/30
主分类号
G03B17/30
代理机构
代理人
主权项
地址
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