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经营范围
发明名称
Universal flight indicator
摘要
申请公布号
US2271315(A)
申请公布日期
1942.01.27
申请号
US19380243748
申请日期
1938.12.03
申请人
SPERRY PRODUCTS, INC.
发明人
JR. ELMER A. SPERRY,
分类号
G01C9/00;G01C17/08
主分类号
G01C9/00
代理机构
代理人
主权项
地址
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