|Revision as of 22:55, 29. Oct 2019||Revision as of 22:55, 4. Nov 2019|
|Line 19:||Line -1:|
|<br clear = all>||<br clear = all>|
|-||<div id="Patentderwoche" style="text-align:right">[[Bild:US2190472-drawing.png|thumb|200px|right|Patent of the week]]</div>||+||&|
Revision as of 22:55, 4. Nov 2019
Welcome in the world of mechanical calculating.
We invite all friends of mechanical computers, calculating machines and reckoners to participate and share their knowledge with other collectors.
Rechnerlexikon currently contains 5381 articles
For a list of selected recommended articles please look at the German Homepage of Rechnerlexikon: Hauptseite
According to copyright you are allowed to cite verbatim from rechnerlexikon.de when giving the reference.