Referenced by|
| US4006897 | Feb 28, 1975 | Feb 8, 1977 | Cremeal S.A. | Simulated tennis game | | US4125321 | Dec 6, 1976 | Nov 14, 1978 | | Apparatus for projecting light images | | US4135303 | Jul 18, 1977 | Jan 23, 1979 | Jouets Educatifs Universels | Toy such as a board | | US4343091 | Mar 19, 1981 | Aug 10, 1982 | | Three-dimensional drawing tool | | US4451985 | Nov 20, 1981 | Jun 5, 1984 | | Drawing apparatus | | US4541180 | Oct 26, 1983 | Sep 17, 1985 | | Method for creating and viewing a composite three-dimensional design | | US4669984 | Feb 7, 1986 | Jun 2, 1987 | California R & D Center | Light dot matrix game assembly | | US4675476 | Oct 7, 1985 | Jun 23, 1987 | NEC Corporation | Magnetophoresis type display and graphic input/output device using the same | | US4801266 | Jan 25, 1988 | Jan 31, 1989 | | Irridescent drawing or sketching device | | US4856197 | May 13, 1988 | Aug 15, 1989 | Buddy L Corporation | Drawing device having retractable stylus | | US4995610 | May 16, 1989 | Feb 26, 1991 | | Electric boxing game | | US5038482 | Oct 11, 1989 | Aug 13, 1991 | | Three-dimensional drawing device | | US5212874 | Mar 12, 1991 | May 25, 1993 | | Three-dimensional drawing device | | US5333387 | Jul 21, 1993 | Aug 2, 1994 | The Ohio Art Company | Color drawing toy | | US5867914 | Feb 9, 1996 | Feb 9, 1999 | The Ohio Art Company | Drawing device with multimedia enhancement |
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