1931
1931
1936
1939 - 1945
1939 – 1945
The 2nd World War disrupted almost all of the company's activities: Most of the company buildings were badly damaged or completely destroyed.
1939 - 1945
1945 / 1946
1947 - 1950
1947 - 1950
1951
1957
1957
1959
1961
1961
The 1960s
1968
1968
1972
1979 / 1980
1979 / 1980
1983