![[Main Page]](/en/upload/wiki.png)
Main Page
All pages
All pages countries people essays chapters machines calculating aids tables accessories manufacturers literature technical terms instructions advertising materials 
Glossary 
Patents Index: literature (733 Artikel)
| Abakus in Youtube | to | Cajori 1909 |
| Calculators in Youtube | to | GNC-Monatsschrift |
| Goldman 1898 | to | Kadner 1956 |
| Kantoormachinegids | to | Mueller 1788 |
| Mueller 1906 | to | Reese 2013/5 |
| Reese 2013/6 | to | Treves 1911 |
| Tricentenaire Machine Calculer 1942 | to | Weiss 2019.4 |
| Wertlos-Tabelle | to | Zühlke 1952 |