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First Pocket Calculator (Article in German)
03-27-2017, 06:53 PM (This post was last modified: 03-27-2017 07:00 PM by pier4r.)
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RE: First Pocket Calculator (Article in German)
Was not the curta the first one? Well not fitting a pocket, but portable?

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RE: First Pocket Calculator (Article in German) - pier4r - 03-27-2017 06:53 PM



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