Calculators Made By Other Companies


In the late 1960s and early 1970s, in order to fill gaps in its product range, Sumlock Anita marketed some mechanical and electronic calculators manufactured by other companies.
Listed here are the known calculators made by other companies and sold by Sumlock Comptometer.

Mechanical Calculators:

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Comptograph 101

Electronic Calculators & Accounting Machines:


Compucorp (Computer Design Corporation) of Los Angeles, U.S.A., was an OEM supplier to Sumlock Anita Electronics, and other companies.
Known Compucorp machines sold under the Sumlock name include:

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 Nixdorf & RUF Visible Record Computer

Nixdorf Visible Record Computer

Sumlock Comupcorp 150 series

Compucorp 150 Series
Sumlock Compucorp 324G

Sumlock Compucorp
344 Statistician

Sumlock Compucorp 344

Sumlock Compucorp
400 Series calculators

Compucorp 425G

By Daniel Sancho from Málaga, Spain (Compucorp 425G)
[CC BY 2.0  (],
via Wikimedia Commons

The Bell Punch Company & the Development of the Anita Calculator
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Text & photographs copyright © 2002 - 2019 Nigel Tout, except where noted otherwise.