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发明名称
Camera focusing mechanism
摘要
申请公布号
US1893712(A)
申请公布日期
1933.01.10
申请号
US19310543108
申请日期
1931.06.09
申请人
MITCHELL CAMERA CORPORATION
发明人
MITCHELL GEORGE A.
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
主权项
地址
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