1914 Foundation of the company “Werkstatt Apparatebau Emil Wolf”. He led his company through 1937, economic and very serious health problems forced him to sell.
1938 Hermann Holzapfel took over the troubled company in 1938.
1939 conversion of the “Werkstatt Apparatebau Emil Wolf” into “Autogenwerk EWO”
1941 Total destruction in the Second World War
1943 rebuilding of the company in the High Street
1955 Move to new location Vaihingen industrial area
1964 conversion of “Autogenwerk” in “Armaturen- und Autogengerätefabrik EWO H. Holzapfel KG” and ordered his sons to limited partners
1964 50 year company anniversary and inauguration of the large main building
1970 purchase of surrounding land for expansion
1973 Construction of storage and shipping building
1980 demolition and rebuilding and expansion of the warehouse
2002 resignation of Hermann, Klaus and Bernd Holzapfel
