Method and means for indicating altitude from aircraft

申请公布号：US1913148(A)

申请号：US19290353513

申请日期：1929.04.08

申请公布日期：1933.06.06

申请人：

GENERAL ELECTRIC COMPANY

发明人：ALEXANDERSON ERNST F. W.

分类号：G01S11/02;G01S13/08;G01S19/14;G09F13/06

主分类号：G01S11/02

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