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经营范围
发明名称
Electromagnetic micrometer
摘要
申请公布号
US2769969(A)
申请公布日期
1956.11.06
申请号
US19550497940
申请日期
1955.03.30
申请人
NORTON COMPANY
发明人
3D GEORGE E. COMSTOCK
分类号
G01D5/20
主分类号
G01D5/20
代理机构
代理人
主权项
地址
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