Number | Name | Date | Kind |
---|---|---|---|
1974444 | Burkey | Sep 1934 | |
2233045 | Bonner | Feb 1941 | |
2605742 | Burkey | Aug 1952 | |
2709984 | Marks | Jun 1955 | |
2818672 | Kreutzer | Jan 1958 | |
3363356 | Kreutzer | Jan 1968 | |
3369318 | Kreutzer | Feb 1968 | |
3484665 | Mountjoy | Dec 1969 | |
3693276 | Kurc | Sep 1972 | |
4825810 | Sharber | May 1989 | |
4839980 | Hersom | Jun 1989 |
Entry |
---|
Electronics Illustrated, May 1961 pp. 88-90. |