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发明名称
Precision camera
摘要
申请公布号
US1847010(A)
申请公布日期
1932.02.23
申请号
US19260142742
申请日期
1926.10.19
申请人
DIRECTOPLATE CORPORATION
发明人
KOPPE ALEXANDER T.
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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