- 1921
Special workshops are built to accommodate an assembly line for threshing machines. The quality of these machines helped establish KUHN's excellent reputation. - 1928
KUHN celebrates its 100th anniversary and produces on average 1,000 threshing machines per year. The production of mowers, tedders and tedder-rake combinations steadily increases.

1946
- KUHN joins an important Swiss company (BUCHER-GUYER), who also specialised in the manufacture of agricultural machinery.

1949
- The first mounted cutter bar is introduced.
1950
- KUHN enters the tillage equipment sector.
