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发明名称
摘要
申请公布号
FR1552879(A)
申请公布日期
1969.01.10
申请号
FRD1552879
申请日期
1967.08.21
申请人
发明人
分类号
G01C19/38;H03M1/00
主分类号
G01C19/38
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