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Structura mecanismului
Funcţie This manual adding machine has an integrated printer. It comprises a complete 9-row keyboard, numbered from 1 to 9. The keyboard is based on the Comptometer; each key has a number and its complement for subtraction. The machine uses the Pascal system principle. A black key enables the keyboard to be raised. Addition is performed automatically by typing the numbers one after another, and the crank enables them to be printed out. The crank also has a clear function, by pressing the Total key.
 

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DMG-Lib FaviconDMG-Lib https://www.dmg-lib.org/dmglib/handler?mcdsc=3046025
Europeana FaviconEuropeana  http://www.europeana.eu/portal/record/2020801/dmglib_handler_mcdsc_3046025.html
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IFMIFMA  http://www.ifma.fr
PtcPATSTEC  http://www.patstec.fr
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