After Roland Rüefli's death in 1982, the Italian Umberto Maglioli took over as president of the company [5]. But the company was one of the many victims of the "quartz crisis", and disappeared in 1995.
[1] FOSC 1923
[2] FOSC 1927 and 1929
[3] FOSC 1947
[4] Europa Star, Europe edition, 1975, 90-6, pp. 150-151
[5] FOSC 1982
The FOSC (Feuille Officielle Suisse du Commerce) is available on E-periodica
Notes :
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