Decoder clutching system for minicomputers
Desk-top calculator
Detection system for spatially-distributed set of radiation beam
Device for electroconductive connection and reading
Device for electroconductive connection and reading
Device for transmitting information in the form of electrical si
Dietary aid
Digital area navigation system and combined magnetic card reader
Digital rate compensator for a card reader
Dispensing system and security card for use therewith
Distorted two frequency coded data interpreting method and appar
Distorted two frequency coded data interpreting method and appar
Document feed for optical scanner
Document reject reentry
Dual edge detector for bar codes
Electrical read-out apparatus
Electro-mechanical card reader head
Electronic calculator
Electronic calculator for determining truck driver log book valu
Electronic calculator with printer