Calculator - Friden
Infomatics - Micrographics - 3M - Fair
Calculator - Addo
Calculators - Sharp
Glue - Titanol - Gimborn
Cash register - Krupp
Calculating machine - ADDO X
Dictation machine
Paperclip
IBM - 50 years of electric typewriters
Paperclip - Book
Cellophane adhesive tape
Paper - Processing machinery
Typewriter - Royal
Measuring paper
Paper
Typewrtter - Calculating machine
IBM - Electric typewriter
Calculator - Counting machine - Cash register - Victor
Calculator - Counting machine - Accounting machine
