Number | Name | Date | Kind |
---|---|---|---|
D207104 | Tiarks | Mar 1967 | |
2508146 | D'Elia | May 1950 | |
3208747 | Kavakos | Sep 1965 | |
3913909 | Bissell | Oct 1975 | |
4174833 | Henning et al. | Nov 1979 | |
4239213 | Jarvis | Dec 1980 | |
4892306 | Kawar | Jan 1990 |
Entry |
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Practical Electronics, 3-1982 vol. 18 No. 3 pp. 36-37 Bent Wire Game. |
Radio and Electronics Constructor, 4-1975 vol. 28 No. 9 pp. 556-557 Hand Tremor Detector. |
Plaything, 8-1959 p. 52 Beat the Buzz. |