Number | Name | Date | Kind |
---|---|---|---|
190234 | Mono | May 1961 | |
221002 | Bachmann | Jun 1971 | |
D228350 | Yoshida et al. | Sep 1973 | |
D230404 | Jimbo | Feb 1974 | |
236008 | Wixon | Jul 1975 | |
247566 | Jensen | Mar 1978 | |
266425 | Reaume | Oct 1982 | |
D278435 | Hikawa | Apr 1985 | |
3657722 | Givens et al. | Apr 1972 |
Number | Date | Country |
---|---|---|
65337 | Apr 1984 | JPX |
Entry |
---|
Newman Computer Exchange Catalog, Summer, 1978, p. 33, Casio MQ2 Calculator (Computer Box). |