SharpCasioHPOlivettiGenéricaElginTexas InstrumentsMoure JarCanonBurroughsProcalcSanyoCalculadora de MesaKenkoOlympiaAuroraCitizenBrunsvigaClasseAllen BradleyDTCTrulyMonroeLogitechJapanWaltherPanasonicCSSpiralBell'sFranklinContexScientific AtlantaSMPalmVictorKadioCastleAltusMultifixAllenbradleyToshibaFixNCLifelongKapbomMitsubishi