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发明名称
Film reel
摘要
申请公布号
US2339009(A)
申请公布日期
1944.01.11
申请号
US19430480809
申请日期
1943.03.27
申请人
GORDON JULIUS M
发明人
GORDON JULIUS M.
分类号
G03B21/32
主分类号
G03B21/32
代理机构
代理人
主权项
地址
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