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发明名称
Testing material
摘要
申请公布号
US2902348(A)
申请公布日期
1959.09.01
申请号
US19550526319
申请日期
1955.08.03
申请人
ALLIED RESEARCH PRODUCTS INCORPORATED
发明人
OSTRANDER CHARLES W.
分类号
G01N31/22
主分类号
G01N31/22
代理机构
代理人
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