Schweizerische Industrie Gesellschaft
In 1972 Rolf-Dietrich Sauer died. In 1975 'Sauer Getriebe' took over plants in Aachen and Kiel from 'Sauer Maschinenbau', and in 1976 the 'J. P. Sauer &amp; Sohn Maschinenbau' sold their hunting arms business in Eckernförde to the "Schweizerische Industrie Gesellschaft" (SIG), a company which had developed firearms from the 1860s onwards.