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发明名称
Camera shutters
摘要
申请公布号
US2917982(A)
申请公布日期
1959.12.22
申请号
US19550492341
申请日期
1955.03.07
申请人
MARTIN PAUL S
发明人
MARTIN PAUL S.
分类号
G03B9/14
主分类号
G03B9/14
代理机构
代理人
主权项
地址
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