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发明名称
Photographic apparatus
摘要
申请公布号
US2309960(A)
申请公布日期
1943.02.02
申请号
US19410381113
申请日期
1941.02.28
申请人
HENRY KERSHAW
发明人
KERSHAW HENRY
分类号
G03B27/50
主分类号
G03B27/50
代理机构
代理人
主权项
地址
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