Direction indicating apparatus
作者： Labin Emile
DOI:
关键词:
摘要: This invention relates to improvements in direction indicating apparatus, and particular improved means for simultaneously three dimensions. It is an object of the provide apparatus location object. Another provide...
lens.org 参考文章(5)
Joseph Lyman, Moseley Francis L, Hunter Paul B, Radio absolute altimeter ,(1937)
Plaistowe Donald Leopold, Radio apparatus for detecting aircraft ,(1938)
Roscoe H George, Electronic indicating system ,(1938)
William D Hershberger, Antenna switching system ,(1941)
John W Greig, Three dimension radio direction finder ,(1932)