Calculator - Calculating machine - Addo-X
Electric typewriter - Remington Rand
Typewriter - The Silent - L C Smith - Groningen
Calculator - Calculating machine
Cash desk - ICL - Computer
Duplicating machine - Stencil - Offset - Gestetner - Diemen
Copy machine - IBM
Typewriter - Drawing table - Amersfoort
Calculating machine - Typewriter - Vermon - Olympia
Dictate machine - Eindhoven
