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发明名称
Automatic aperture control mechanism for camera diaphragms
摘要
申请公布号
US2257586(A)
申请公布日期
1941.09.30
申请号
US19390293670
申请日期
1939.09.07
申请人
BAILEY HARRISON W
发明人
BAILEY HARRISON W.
分类号
G03B27/66
主分类号
G03B27/66
代理机构
代理人
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地址
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