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经营范围
发明名称
Automatic camera aperture
摘要
申请公布号
US2046926(A)
申请公布日期
1936.07.07
申请号
US19360066294
申请日期
1936.02.28
申请人
JOHNNIE K. BURNEY;CHARLES S. MARTZ
发明人
RICHARDSON WILLIAM F.
分类号
G03B27/66
主分类号
G03B27/66
代理机构
代理人
主权项
地址
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