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发明名称
摘要
申请公布号
JPS5252601(Y1)
申请公布日期
1977.11.30
申请号
JP19750122266U
申请日期
1975.09.04
申请人
发明人
分类号
G01C19/38;G01C19/02;G01C19/44;G01C21/18;(IPC1-7):G01C19/02
主分类号
G01C19/38
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