Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,694 pages of information and 247,077 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Citizen Business Machines: Difference between revisions

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[[Category: Country- Japan]]
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Latest revision as of 07:43, 2 February 2016

Calculator manufacturer based in Japan.

1974 Added three new calculators to its range. The Private Citizen, 120D, designed for everyday private use. The Business Citizen, 820R, industrial and commercial market with a percentage key and The Scientific Citizen, 820R, with triganometric functions, inverse, logarithms, roots and powers.

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