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发明名称
Perfectionnements aux appareils indicateurs
摘要
申请公布号
FR821232(A)
申请公布日期
1937.11.30
申请号
FRD821232
申请日期
1937.04.29
申请人
SPERRY GYROSCOPE COMPANY, INC.
发明人
分类号
B60Q3/04
主分类号
B60Q3/04
代理机构
代理人
主权项
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