Hand operated optical character recognition system

Hand operated optical character recognition wand

Hand portable monitoring device for monitoring personnel...

Hand safety flasher

Hand tool driven by DC battery with multiple level battery condi

Hand tool with at least two alarm devices

Hand wash monitoring system and method

Hand washing alert

Hand washing alert system

Hand washing compliance detection system

Hand washing compliance measurement and recording system

Hand washing monitor for detecting the entry and...

Hand-held apparatus for monitoring drug-nutrient-mineral...

Hand-held computer for identifying hunting and fishing areas...

Hand-held control device

Hand-held device with lamp for displaying playtime for...

Hand-held electronic apparatus using two batteries sequentially

Hand-held environmental monitor

Hand-held interactive terminal

Hand-held interactive terminal