Data symbol reader including adjustable trigger switch unit

Data symbol reader utilizing ambient light illumination

Data symbol reader with an observation window

Data symbol reader with observation window

Data symbol reading apparatus

Data symbol reading device

Data symbol reading device

Data system

Data system

Data system and method for accessing a computer network...

Data system employing wallet-size optical card

Data system with support surfaces for reciprocating data head

Data verification method and magnetic media therefor

Data verification method and magnetic media therefor

Data verification method and magnetic media therefor

Data-gathering device for scanning data having a variable amplit

Data/pen well

Data/pen well

Dataform reader including dual laser and imaging reading assembl

Dataform reader utilizing hand jittering compensation method