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发明名称
Apparatus for measuring relative displacement or the thicknesses of materials
摘要
申请公布号
US2431841(A)
申请公布日期
1947.12.02
申请号
US19450621984
申请日期
1945.10.12
申请人
HARTFORD NATIONAL BANK & TRUST COMPANY
发明人
STORM ANDRE WILLEM
分类号
G01B7/00;G01B7/14
主分类号
G01B7/00
代理机构
代理人
主权项
地址
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