Calculators Marketed by
Sumlock Bondain
... Sumlock-Bondain, a company with its roots in the Sumlock-Anita calculator business. It was formed by people made redundant by the takeover of Sumlock-Anita by the U.S. giant Rockwell, who did
not want to see their talents go to waste and decided to continue in that same business.
Originally they sold the Sumlock calculator range but when that was wound up by Rockwell, they found favour with Texas
Instruments, for whom they are wholesalers, and with Hewlett-Packard, for whom they act as a main agent.[1]
Sumlock Bondain marketed several desktop calculators which could be considered the end of the line of Sumlock calculators.
Known Sumlock Bondain models:
- Sumlock Bondain 122 PD - Programmable Printing Display financial calculator, with printer.
- Sumlock Bondain 320A - 12-digits display, 4-function, square root, memory.
- Sumlock Bondain 470 - 12-digits blue-green display & printer, 4-function, square root, memory, Japan.
Click on the picture for more details and more, bigger, pictures.
The Bell Punch Company & the Development of the Anita Calculator
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Text & photographs copyright © 2002 - 2023 Nigel Tout, except where noted otherwise.