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Mechanical Calculators Manufacturer Database
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Brand
|
Manufacturer |
Origin |
First |
Last |
Type |
Info |
|
| I | |||||||
 | I.L.H. | GER | - | - | S |  | |
| Ichida | JAP | <1962 | - | A |  | |
 | Imperial | ? | - | 1970 | E | - | |
| Indeco | USA | - | - | S | | |
| Industria Calcolatrici Scriventi S.p.A. | ITA | 1936 | 1958 | M, E | | |
| Industria Calculadores Espanolas S.L. | SPA | - | - | M | - | |
| Industria Macchine Calcolatrici (IMCA) | ITA | 1957 | 1964 | M | | |
| Ing. C. Olivetti & C. | ITA | 1908 | - | M, E | | |
| Innovation | CHN | - | - | S | | |
 | Institut für Angewandte Mathematik und Mechanik | Friedrich-Schiller University Jena | GER | 1959 | - | D | - |
| International Business Machines (IBM) | USA | - | - | A | - | |
| International Money Machine Co. | USA | 1910 | - | M, E | - | |
| Intra | JAP | - | - | S | | |
| Invicta S.A. | ITA | >1930 | - | ? | - | |
| Inzadi | Fabb. Addizionatrice Italiana S.S., G. Inzadi | ITA | 1950 ? | 1972 | M, E | - |
| Iris | SPA | 1945 | - | M | | |
| Iskolai Taneszközök Gyára (ITG) | HUN | 1950s | - | S | | |
| IWA (Rechenschieberfabrik F. Riehle GmbH) | GER | 1926 | >1971 | S | | |
(c) epocalc 2012