Number | Name | Date | Kind |
---|---|---|---|
1978107 | Hoffmann | Oct 1934 | |
2585268 | Olsen | Feb 1952 | |
3037773 | Chambers et al. | Jun 1962 | |
3206887 | Evler et al. | Sep 1965 | |
3309092 | Hardesty et al. | Mar 1967 | |
3565438 | Bischof | Nov 1968 | |
3973775 | Bolan et al. | Aug 1976 | |
4078804 | Coster et al. | Mar 1978 | |
4079941 | Morales | Mar 1978 | |
4157184 | Recard | Jun 1979 | |
4232864 | Yaworsky | Nov 1980 | |
4296928 | Nick | Oct 1981 | |
4341386 | Kleva | Jul 1982 | |
4385765 | Munn et al. | May 1983 | |
4570939 | Tourville et al. | Feb 1986 |
Entry |
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Teaching Concepts, Inc., Advertisement Literature, "Space Hop", 1980. |
Games Master Catalog, EON Products, Inc., "Cosmic Encounter", 1980, p. 45. |