The U.S. Patents of Copthorne Macdonald
US Patent
3,389,221, 1968 - Google Patents
... 2. CONTROL SIGNAL TO MOTOR 38 INVENTOR Copthorne Macdonald
-100 6 ATTORNEY' ...
These tubes have been generally described in an article entitled "Slow-
Scan TV Vidicons
Developed," Electronics, May 11, 1962, pages 104, 106 and 107, by Copthorne
Macdonald. ...
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C Macdonald
- US Patent 3,175,035, 1965 - Google Patents
... I. Fig. 3 A WITNESSES Fig. 3B Fig. 3C INVENTOR Copthorne Macdonald
BY ATTORNEY Page
2. March 23, 1965 c. ^DONALD 3,175,035 SYSTEM FOR REPRODUCING RECORDED VIDEO
SIGNALS 2 Sheets-Sheet 2 Filed Dec. 27, 1962 Page 3. 3,175,035 Patented Mar. ...
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US Patent
3,852,759, 1974 - Google Patents
... 3, 1974 [54] [75] [73] [22] 121] BROADBAND TUNABLE ANTENNA
Inventors: Robert A.
FelsenheSd, 4 CHffside Dr., Livingston, NJ; Copthorne MacDonald,
81 Windsor Cir., Elmira, NY
Assignee: International Telephone and Telegraph Corporation, Nutley, NJ Filed:
Apr. ...
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