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发明名称
Camera shutter
摘要
申请公布号
US2922348(A)
申请公布日期
1960.01.26
申请号
US19570641297
申请日期
1957.02.20
申请人
WHITEHOUSE PRODUCTS, INC.
发明人
LAWSON WILLIAM L.
分类号
G03B9/70
主分类号
G03B9/70
代理机构
代理人
主权项
地址
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