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经营范围
发明名称
Improvements in or relating to automatic steering devices for dirigible craft
摘要
申请公布号
GB355566(A)
申请公布日期
1931.08.27
申请号
GB19300030274
申请日期
1930.10.09
申请人
SPERRY GYROSCOPE COMPANY INC.
发明人
分类号
G05D1/02
主分类号
G05D1/02
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代理人
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