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发明名称
Scale reading apparatus for rotatable mirror devices
摘要
申请公布号
US2305775(A)
申请公布日期
1942.12.22
申请号
US19390293462
申请日期
1939.09.05
申请人
GERHARD HANSEN
发明人
HANSEN GERHARD
分类号
G01R5/00
主分类号
G01R5/00
代理机构
代理人
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