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摘要
申请公布号
JPS5233691(U)
申请公布日期
1977.03.09
申请号
JP19750119245U
申请日期
1975.09.01
申请人
发明人
分类号
G01N27/72;E21D9/00;E21F5/00;F42D5/00;F42D5/02;(IPC1-7):G01N27/72
主分类号
G01N27/72
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代理人
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