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发明名称
ALTIMETER
摘要
申请公布号
US3595077(A)
申请公布日期
1971.07.27
申请号
USD3595077
申请日期
1969.05.21
申请人
BUTLER NATIONAL CORP.
发明人
EARL STUART PERKINS
分类号
G01C23/00;(IPC1-7):G01C21/00
主分类号
G01C23/00
代理机构
代理人
主权项
地址
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