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发明名称
Improvements in or relating to indicating instruments
摘要
申请公布号
GB494945(A)
申请公布日期
1938.10.31
申请号
GB19370012262
申请日期
1937.04.29
申请人
SPERRY GYROSCOPE COMPANY INC.
发明人
分类号
G01C9/10
主分类号
G01C9/10
代理机构
代理人
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