Number | Date | Country | Kind |
---|---|---|---|
2-11294 | Jan 1990 | JPX | |
2-106190 | Apr 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3757041 | Thorpe et al. | Sep 1973 | |
4520398 | Takahashi | May 1985 | |
4591913 | Pohl | May 1986 | |
4809072 | Pohl | Feb 1989 | |
4831447 | Lake, Jr. | May 1989 | |
4954898 | Nakata | Sep 1990 | |
4974083 | Bloomfield et al. | Nov 1990 |
Number | Date | Country |
---|---|---|
1525838 | Apr 1978 | GBX |
Entry |
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Television Technics & Electronics; '89/vol. 37; pp. 15-21. |