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发明名称
摘要
申请公布号
JPS55137381(U)
申请公布日期
1980.09.30
申请号
JP19790037183U
申请日期
1979.03.22
申请人
发明人
分类号
G01D11/28;G04B19/30;G04B37/18;G04C3/00;(IPC1-7):G04B19/30
主分类号
G01D11/28
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