1933—1945: From Elektronmetall G.m.b.H., Stuttgart-Cannstatt (EC) to MAHLE KG

1933Ernst and Hermann Mahle become sole shareholders
1934“Turbometal”—a dense metal mesh for air filters—is registered for patent
1935Foundation of MAHLE pension club
First profiled pistons
1937Foundation of MAHLE Siedlung GmbH
Series production of oil bath air filters
1938EC converted into MAHLE KG; introduction of MAHLE logo
First blank cylinders using centrifugal casting process