Addiators

These small, flat calculators have a long history.

The Frenchman Caze (1720) and the Russian  Kummer (1847) build the first calculators based on this principle.

In 1888 J.L.Troncet (France) produced the Arithmographe. That is the reason why they give this kind of calculators the name troncets.

These troncets are produced in several countries (Germany, USA, Japan) until the introduction of the electronic pocketcalculator.

  • Addiator

    Carl Kübler (1875) founded the company Addiator GmbH in 1920 in Berlin.

    In 1933 the company changed in Addiator Rechenmaschinenfabrik C.Kübler.

  • Addimult

    Hans-Wolfgang Kübler (son of Carl, Addiator) produced by his own in 1949 in Bad Harzburg Addimult calculators. He said: Addiator jetzt auch von Addimult.

    He also produced other brands, like Addmaster and others

  • Produx (Meuter)

    Otto Meuter (1892-1970) was constructor in the addiator-factory. After a lot of problems (money) he left Addiator and produced (with Jean Bergmann) the calculators Pro-Calculo and Correntator. In 1928 he founded Werkstatt Otto Meuter in Berlin and produced the first Produx machines. After World War 2 Otto’s son Claus goes to Bremen (West-Germany) and Luzie Meuter (the ex-wife of Otto) started producing calculators in East-Germany under the name Record LM

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