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RADIO SHACK (1980) |
RADIO SHACK (1980) |
CASIO (1981) | SHARP (1982) |
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HP (1982) |
RADIO SHACK (1982) |
CASIO (1982) |
CASIO (1982) |
 |
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PANASONIC (1982) |
QUASAR (1982) |
RADIO SHACK (1983) | CASIO (1983) |
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CASIO (1983) |
CANON (1983) |
TEXAS-INSTRUMENTS (1983) | CASIO (1983) |
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 |
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| CASIO (1984) | CASIO (1984) |
HP (1984) | SANCO (1984) |
 |
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 |
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| CASIO (1984) | HP (1984) | TI (1984) |
CASIO (1984) |
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 |
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| TI (1985) | CASIO (1987) |
SHARP (1987) |
PSION (1988) |
(c) epocalc 2026