| Number | Name | Date | Kind |
|---|---|---|---|
| 2471841 | Sells | May 1949 | |
| 2589025 | Phelps et al. | Mar 1952 | |
| 3005055 | Mattke | Oct 1961 | |
| 3223792 | Strother | Dec 1965 | |
| 3874669 | Ariano et al. | Apr 1975 | |
| 4026048 | Hill et al. | May 1977 | |
| 4026555 | Kirschner et al. | May 1977 | |
| 4027119 | Tezuka | May 1977 | |
| 4029915 | Ojima | Jun 1977 | |
| 4041258 | Harada | Aug 1977 | |
| 4095791 | Smith et al. | Jun 1978 | |
| 4124787 | Aamoth et al. | Nov 1978 | |
| 4142180 | Burson | Feb 1979 | |
| 4171470 | Gettig | Oct 1979 | |
| 4218702 | Brocard et al. | Aug 1980 | |
| 4230916 | Mochizuki | Oct 1980 | |
| 4246452 | Chandler | Jan 1981 | |
| 4249734 | Bromley | Feb 1981 | |
| 4249735 | Bromley | Feb 1981 |
| Number | Date | Country |
|---|---|---|
| 810733 | May 1974 | BEX |
| 2408027 | May 1975 | DEX |
| 2807231 | Aug 1978 | DEX |
| 2826731 | Dec 1978 | DEX |
| 7414327 | May 1976 | NLX |
| 2000946 | Jan 1979 | GBX |
| Entry |
|---|
| "Electronic Sea Battle Game From the Mego Corporation", Playthings Magazine, Apr. 1979, p. 28. |