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发明名称
Automatic film jam shutoff
摘要
申请公布号
US2259493(A)
申请公布日期
1941.10.21
申请号
US19410386869
申请日期
1941.04.04
申请人
MELVIN SHORR
发明人
SHORR MELVIN
分类号
G03B21/43
主分类号
G03B21/43
代理机构
代理人
主权项
地址
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