Number | Name | Date | Kind |
---|---|---|---|
2035629 | Wing | Mar 1936 | |
3138491 | Rubio | Jun 1964 | |
3403910 | Claycomb | Oct 1968 | |
3710505 | Linenfelser | Jan 1973 | |
4080753 | Hiner et al. | Mar 1978 | |
4114885 | Morrow | Sep 1978 | |
4134229 | Lehman | Jan 1979 | |
4135324 | Miller et al. | Jan 1979 | |
4196540 | Hembree et al. | Apr 1980 | |
4421320 | Robson | Dec 1983 |
Number | Date | Country |
---|---|---|
735649 | Jun 1966 | CAX |
Entry |
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Aids & Appliances, Eighteenth edition, 7-1972-6-1973, p. 10, Aud-A-Ball. |
Washington Post, 10/24/82, pp. A1, A16; 10/25/82, pp. A1, A10, "A Season of Light", parts 1 & 2. |
Radio-Electronics, 12-1971, p. 14, Baseballs Sound Off. |