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The Marchant Calculating Machine Company was founded in 1911 by Rodney and Alfred Marchant in Oakland, California. The company built mechanical, and then electromechanical calculators which had a reputation for reliability. First models were similar to the Odhner arithmometer. In 1918, employee Carl Friden designed a new model in response to patent challenges. It was a great success, and Friden became the chief designer until he left in 1934 to found his own company. In 1958 the company was acquired by the Smith Corona typewriter company in a diversification move that proved unsound; the company, which was now known as SCM, tried to stay competitive by introducing the SCM Cogito 240SR electronic calculator (designed by Manhattan Project veteran Stan Frankel) in 1965. Within a few years a t

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  • The Marchant Calculating Machine Company was founded in 1911 by Rodney and Alfred Marchant in Oakland, California. The company built mechanical, and then electromechanical calculators which had a reputation for reliability. First models were similar to the Odhner arithmometer. In 1918, employee Carl Friden designed a new model in response to patent challenges. It was a great success, and Friden became the chief designer until he left in 1934 to found his own company. In 1958 the company was acquired by the Smith Corona typewriter company in a diversification move that proved unsound; the company, which was now known as SCM, tried to stay competitive by introducing the SCM Cogito 240SR electronic calculator (designed by Manhattan Project veteran Stan Frankel) in 1965. Within a few years a tidal wave of cheaper electronic calculators had devastated their business, and by the mid-1980s, SCM's typewriter business, too, had been ruined by the advent of inexpensive personal computers used as word processors. (en)
  • La Marchant Calculating Machine Co. era un noto produttore di calcolatrici meccaniche, soprattutto per applicazioni tecnico scientifiche. Venne fondata nel 1911 da Rodney e Alfred Marchant a Oakland, California ed è ritenuta essere la prima ditta americana del settore . La società inizialmente costruiva calcolatrici meccaniche famose per l'affidabilità, basate sui principi costruttivi delle Odhner. Nel 1918 un giovane dipendente, , cedette alla Marchant il brevetto di una macchina che aveva progettato. Fu un grande successo e Friden divenne il capo dell'ufficio progetti fino al 1934, quando si dimise per fondare una propria ditta. Il suo successore, Harold T. Avery, realizzò un nuovo modello elettromeccanico che portò la Marchant ai vertici del settore. Nel 1958 la società venne acquistata dalla , produttrice di macchine per scrivere, in un tentativo di diversificazione dei prodotti. La nuova società, chiamata SCM, incontrò subito delle difficoltà. Nel 1965 cercò di tornare competitiva lanciando il SCM Cogito 240SR , una calcolatrice elettronica progettata da , ex-ricercatore del Progetto Manhattan. Però, nel giro di pochi anni, un'ondata di nuove calcolatrici elettroniche sempre più economiche e funzionali la pose completamente fuori mercato. A metà degli anni '80, i sempre meno costosi personal computer, che iniziavano ad essere usati come word processor, spazzarono via anche le macchine per scrivere SCM. * Marchant XLA * Marchant EB-9 * Silent Speed 8D * Marchant Figurematic (1960 circa) * Calcolatrice SCM (1960 circa) (it)
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  • The Marchant Calculating Machine Company was founded in 1911 by Rodney and Alfred Marchant in Oakland, California. The company built mechanical, and then electromechanical calculators which had a reputation for reliability. First models were similar to the Odhner arithmometer. In 1918, employee Carl Friden designed a new model in response to patent challenges. It was a great success, and Friden became the chief designer until he left in 1934 to found his own company. In 1958 the company was acquired by the Smith Corona typewriter company in a diversification move that proved unsound; the company, which was now known as SCM, tried to stay competitive by introducing the SCM Cogito 240SR electronic calculator (designed by Manhattan Project veteran Stan Frankel) in 1965. Within a few years a t (en)
  • La Marchant Calculating Machine Co. era un noto produttore di calcolatrici meccaniche, soprattutto per applicazioni tecnico scientifiche. Venne fondata nel 1911 da Rodney e Alfred Marchant a Oakland, California ed è ritenuta essere la prima ditta americana del settore . * Marchant XLA * Marchant EB-9 * Silent Speed 8D * Marchant Figurematic (1960 circa) * Calcolatrice SCM (1960 circa) (it)
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  • Marchant (it)
  • Marchant Calculating Machine Company (en)
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