Microfilm
Pair of compasses - Triangle - Book
Counting - Calculating machines - Contex
IBM
Binder - Compass - Paperclip - Pencil - Pen
Typewrtter - Calculating machine - Olympia
Calculator - DAP
Scryption - Writing
Calculator - Calculating Machine Company - Monroe
Post-it - 3M - Sticky notes - Sponsor 1988 Olympics
Addressing machine
Hermes - Mercury - Carbon
Scissors - Clipping service
Glue pot - Gluton - Talens - Apeldoorn
Electric calculator - Calculating machine - Canola
IBM - International Business Machine Society
Calculator - Calculating machine - Addo
Typewriter - Olivetti
Calculator - Calculating machine - Victor