 |
 |
 |
 |
 |
RADIO SHACK (1980) |
RADIO SHACK (1980) |
CASIO (1981) | SHARP (1982) |
 |
 |
 |
 |
HP (1982) |
RADIO SHACK (1982) |
CASIO (1982) |
CASIO (1982) |
 |
 |
 |
 |
PANASONIC (1982) |
QUASAR (1982) |
RADIO SHACK (1983) | CASIO (1983) |
 |
 |
 |
 |
CASIO (1983) |
CANON (1983) |
TEXAS-INSTRUMENTS (1983) | CASIO (1983) |
 |
 |
 |
 |
| CASIO (1984) | CASIO (1984) |
HP (1984) | SANCO (1984) |
 |
 |
 |
 |
| CASIO (1984) | HP (1984) | TI (1984) |
CASIO (1984) |
 |
 |
 |
 |
| TI (1985) | CASIO (1987) |
SHARP (1987) |
PSION (1988) |
(c) epocalc 2016