1951  Business converted into a joint stock company called "Bucher-Guyer AG".

1954  Production of the Bucher tractor started up. By 1964, a total of 5000 had been delivered.
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1962  Bucher self-loading trailer sparked a sales boom. By 1987, a total of 12000 had been delivered.

1963  Bucher started selling Fiat tractors.

1965  First HP 5000 universal fruit press.
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1966  Agricultural and municipal transporter went into production.

1967  Management taken over by directors Rudolf Hauser (1937), as delegate of the board, Hans Hauser (1935–1996) and later Thomas Hauser (1940).