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发明名称
摘要
申请公布号
FR1599290(A)
申请公布日期
1970.07.15
申请号
FRD1599290
申请日期
1968.12.18
申请人
发明人
分类号
G01C9/26;G06K19/06;G11B5/84
主分类号
G01C9/26
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代理人
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地址
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