Bürotechnik, Rechenmaschnen:

 

Addieren und subtrahieren

 

 

office technology, calculating machines:

 

add and subtract

 

 

 

Little Giant

Lipsiaddi

Produx

Picma

Addiator

Addiator universal

Addiator

Addiator

Addiator

Stima

Comptator

Golden Gem

O. J. Adder

Adix

Correntator