Electromagnetic field phase determining apparatus
United States Patent 2548836
US Patent References:
/RE21955.html
- - RE21955
Navigation method and apparatus
- - 2198113
Radiant energy distance measuring system
- - 2261272
/RE21955.html
- - RE21955
Navigation method and apparatus
- - 2198113
Radiant energy distance measuring system
- - 2261272
Inventors:
Worthington Jr., Harvey R.
Publication Date:
04/10/1951
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Assignee:
Worthington Jr., Harvey R.
Primary Class:
Other Classes:
324/84
International Classes:
G01R25/00