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经营范围
发明名称
Improvements in or relating to navigation training apparatus
摘要
申请公布号
GB892095(A)
申请公布日期
1962.03.21
申请号
GB19580009444
申请日期
1958.03.24
申请人
GENERAL PRECISION INC.
发明人
分类号
G09B9/26
主分类号
G09B9/26
代理机构
代理人
主权项
地址
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