Sumlock Comptometer: Difference between revisions
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1940 Launched under the name ''Sumlock''. | 1940 Launched under the name ''Sumlock''. | ||
1961 Bell Punch Co founded [[Sumlock Anita | 1961 Bell Punch Co founded [[Sumlock Anita Electronics]], perpetuating the ''Sumlock'' name. | ||
1973 Part of [[Lamson Paragon Supply Co|Lamson Industries Group]] | 1973 Part of [[Lamson Paragon Supply Co|Lamson Industries Group]] | ||
Revision as of 10:35, 27 June 2023
Sumlock Comptometer Ltd. of Anita House, Rockingham Rd., Uxbridge, Middx.
Bell Punch Co developed a full keyboard (mechanical) calculator over the few years before WWII.
1940 Launched under the name Sumlock.
1961 Bell Punch Co founded Sumlock Anita Electronics, perpetuating the Sumlock name.
1973 Part of Lamson Industries Group
1973 After reorganisation to stem losses, the business was one of 3 sold to Rockwell International[1]
See Also
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Sources of Information
- ↑ The Times May 22, 1973