Number | Name | Date | Kind |
---|---|---|---|
3231276 | Cooper | Jan 1966 | |
3418729 | Ravich | Dec 1968 | |
3572711 | Conklin et al. | Mar 1971 | |
3778058 | Rausch | Dec 1973 | |
3868112 | Avera | Feb 1975 | |
3874669 | Ariano et al. | Apr 1975 | |
3895799 | Rinne | Jul 1975 | |
4017072 | Kurtz | Apr 1977 | |
4026555 | Kirschner et al. | May 1977 | |
4093223 | Wilke et al. | Jun 1978 |
Number | Date | Country |
---|---|---|
920164 | Jan 1973 | CA |
Entry |
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Popular Electronics; "Build Pontronics"; Apr., 1976; pp. 35-44. |
101 Basic Computer Games; Digital Equipment Corp.; Mar. 1975; pp. 67-71. |