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Glossary 
Patents Index: literature (772 Artikel)
| Abakus in Youtube | to | Business (1891) |
| Business equipment topics | to | Fürtig/Reese/Stassel 2019 |
| Fuß 1933 | to | Hütte 1935 |
| Hyman 1987 | to | Mayer 1908 |
| McCarthy 1924 | to | Reese/Anthes 2009 |
| Reese/Anthes 2012 | to | Smolorz 2009 |
| Smolorz 2013 | to | Weiss 2011.5 |
| Weiss 2011.6 | to | Zwei Jahrhunderte Industriegeschichte in Sömmerda |