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发明名称
Apparatus for making very fine measurements
摘要
申请公布号
US2294831(A)
申请公布日期
1942.09.01
申请号
US19410375101
申请日期
1941.01.21
申请人
CARSON ROBERT W
发明人
CARSON ROBERT W.
分类号
G01B3/00
主分类号
G01B3/00
代理机构
代理人
主权项
地址
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