Number | Name | Date | Kind |
---|---|---|---|
3191177 | Parzen | Jun 1965 | |
4219821 | Selim | Aug 1980 |
Entry |
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Radio News, Jan. 1937, p. 396, top left of page. |
Murphy, An Evaluation of Shore-Based Radio Direction Finding, U.S. Department of Transportation, Sep. 1978, pp. 2-16, 4-4 and 4-20. |