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发明名称
Navigationsschulungsgeraet
摘要
申请公布号
DE1146557(B)
申请公布日期
1963.04.04
申请号
DE1956C012736
申请日期
1956.03.16
申请人
COMMUNICATIONS PATENTS LIMITED
发明人
分类号
G09B9/26
主分类号
G09B9/26
代理机构
代理人
主权项
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