![[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 (748 Artikel)
| Abakus in Youtube | to | Butzbach/Bethmann 1991 |
| BZB | to | Geppert 2016 |
| Gibson/Sterling 1991 | to | IM2011 |
| IM 2010 | to | Merzbach 1977 |
| Meyer 1829 | to | Reese 1995 |
| Reese 1999 | to | Stoll 2006 |
| Stümpel 1988 | to | Weiss 2015.3 |
| Weiss 2015.4 | to | Zühlke 1952 |