| 1825 | Foundation in Schlüchtern |
| Modern soap factory | |
| Manufacturing of soft soaps, soap bars, washing powder and soda | |
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| 1930 | Moving to Steinau |
| Extension of product range with household products, | |
| e.g. floor waxes. | |
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| 1945 | Nearly total destruction of the factory |
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| 1950 | New start of production |
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| 1970 | Foundation of today’s DREITURM GmbH |
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| After the soap production had been discontinued, DREITURM became a refining factory producing a range of products in the fields: |
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| 1971 | Complete renovation of the production centre |
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| Production of liquid and semi-liquid products begins |
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| 1971 – 1990 | Production and extension of the sales department |
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| 1976 | Authorisation according to § 13 AMG |
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| Manufacturing of medicin in liquid and semi-solid form |
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| 1990 – 2000 | Extension of the area pharmaceutical and medical devices |
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| Establishment of the areas Pharma I and Pharma II |
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| 1999 | Certification according to DIN EN ISO 9001:2000 and DIN EN 13485 |
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| Manufacturing of medical devices |
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| 2000 – 2001 | Extension and starting up of the production areas pharmacy |
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| Establishment of the area Pharma III |
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| 2002 | Outsourcing the direct marketing |
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| 2003 | Extension of the production areas |
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| 2005 | Implementation of the ERP system „NAVISION“ |
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| New analytical laboratory |
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| 2006 | Certification according to DIN EN ISO 9001:2000 and DIN EN 13485:2003 |
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| 2008 | Transfer of shares (50%) from Dr. Rudolf Hedler to Stefan Hedler |
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| 2009 | Acquisition of shares from the founding families Wolf by Stefan Hedler. Stefan Hedler is now DREITURM's sole shareholder. |
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| Authorization for using the ECO FLOWER certificate for our new developed products |
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| BDIH attestation for the production of natural cosmetics |
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| 2010 | Renaming “Marborner Straße” “Dr.-Rudolf-Hedler-Straße” for honoring Dr. Rudolf Hedler, who had been Dreiturm's managing partner for many years |
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| New development laboratory |