| 1904 | Foundation of the factory selbsttätiger Registrierwaagen GmbH in Gliesmarode, Approval of the first automatic weighing instrument |
| 1912 | Company renamed in Librawerk mit beschränkter Haftung, Generous extensions |
| 1918 | Foundation of the filling department in Oker NATRONAG within the group (soda pulp and paper mills) |
| 1975 | Company renamed in Librawerk Pelz & Nagel GmbH & Co KG |
| 1991 | Changed to Librawerk Maschinenfabrik GmbH |
| 1992 | On the breakdown of the filling activities of the Group processed paper with the company name and NATRONAG takeover by the Maschinenfabrik KNAUP , carried out by the machine for the production NATRONAG for 40 years . With this merger, the headquarters of Oker has been relocated to Salzgitter |
| 1990 | Acquisition of Librawerk in the MÖLLERS GROUP |
| 2001 | Acquisition of NATRONAG by Librawerk Maschinenfabrik GmbH Company headquarters of NATRONAG for better concentration of Salzgitter in the proprietary LIBRA - building in Braunschweig |
| 2010 | Spin-off of Librawerk Maschinenfabrik GmbH from MÖLLERS GROUP. From now on Librawerk acts as an independent company on the market |
