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发明名称
Method and device for measuring thicknesses with penetrating rays
摘要
申请公布号
US2057325(A)
申请公布日期
1936.10.13
申请号
US19320586224
申请日期
1932.01.12
申请人
N. V. PHILIPS' GLOEILAMPENFABRICKEN
发明人
BOUWERS ALBERT;BOLDINGH WILLEM HONDIUS
分类号
G01B15/02
主分类号
G01B15/02
代理机构
代理人
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