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发明名称
Illuminated measuring device
摘要
申请公布号
US2102384(A)
申请公布日期
1937.12.14
申请号
US19350032068
申请日期
1935.07.18
申请人
SCANTLEBURY FRANCIS H
发明人
SCANTLEBURY FRANCIS H.
分类号
G04B19/30
主分类号
G04B19/30
代理机构
代理人
主权项
地址
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Artificial and semi-artificial surfaces