| (Brand on letter: X) | (AKA) | (Year) |
| XAM: 867 | 1975 | |
| XAM: 877 | 1975 | |
| XAM: 879 | MEMORY CALCULATOR | 197? |
| XAM: 889 | Slide Rule Calculator | |
| XAM: 899 | 197? | |
| XAM: TE8000 | ||
| XEROX: 521 | ||
| XONEX: (Unknown model 1) | 197? | |
| XONEX: (Unknown model 2) | 197? | |
| XONEX: 303 | ||
| XONEX: 7000 | 197? | |
| XONEX: 8 | MINI 8 | 197? |
| XONEX: ECL81III | ||
| XONEX: ELSI II | 197? | |
| XONEX: ELSI III | DATAEXAC | 197? |
| XONEX: SR400 | 197? | |
| 29-jul-2010: (16 Devices with letter X). | ||
| Do you know about any models not listed here ?, please do mail me or send me a picture of the device... I'll be more than happy to publish the info and mention your name for credit ... thank you ! | ||
| click to email |