Braun ET22
Calcupen Calcu-pen
Casio FX-191
Casio Micro Mini
Faber Castell TR-1
Hewlett Packard HP-35 red dot
Hewlett Packard HP-27
Hewlett Packard HP-29c
Hewlett Packard HP 20 series model
Keystone 2030
Kiddy Computer 2
Lego calculator
Olympia CD85
Panasonic 850
Philips Executive
Philips P-62
Philips SBC-1745
Reactor TI-1250
Rockwell The 24K II
Sharp EL-8
Sharp EL-428
Sinclair Watch
Sperry Remington 665
Tamaya NC-77 Ned Lloyd Colombo
Texas Instruments USMC Harrier VSTOL/REST
Texas instruments Galaxy 40x specially adapted for the blind
Texas Instruments TM990 computer
