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Wer Baut Maschinen ?

 
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murff



Joined: 27 Oct 2009
Posts: 588
Location: Switzerland
PostPosted: Wed Aug 07, 2019 6:49 pm    Post subject: Wer Baut Maschinen ? Reply with quote
another
unexpected
find...





more
on
my
web
site


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murff



Joined: 27 Oct 2009
Posts: 588
Location: Switzerland
PostPosted: Wed Sep 02, 2020 11:45 am    Post subject: Reply with quote
Kleinstrechenmaschine fuer alle vier Rechnungsarten





Most likely this is the first mention of the future Curta calculator (along with the already existing early patents - DRP Nr. 747074, 1939)!




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