Calculators Sold by Sumlock And Made By Other Companies
Sumlock Compucorp 320G

Sumlock Compucorp 320G

Sumlock-Compucorp 320G Scientist

The display is 12 digits, amber Panaplex gas discharge.

The calculator is powered by 4x D size rechargeable cells.

This model has advanced scientific functions, but is not programmable.

140 mm x 230 mm x 70 mm (5.5" x 9" x 3").

The electronics in this example are date coded to the end of 1972.

Made in the U.S.A. by Compucorp, and sold in Britain under the Sumlock name, and in the U.S. and elsewhere under the Monroe name or just Compucorp.

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Text & photographs copyright © 2002 - 2018 Nigel Tout, except where noted otherwise.