René Didisheim left the company in 1964, and the factory gradually ceased trading. The company went bankrupt in 1985, and the factory's trademarks were transferred to a company in Liechtenstein [13].
[1] Pierre-Yves Donzé, Les patrons horlogers de La Chaux-de-Fonds, Editions Alphil, 2007, pp. 65-67
[2] FOSC 1884
[3] FOSC 1900
[4] FOSC 1905
[5] FOSC 1916
[6] FOSC 1930
[7] Patent CH 141 098
[8] Revue Internationale d'Horlogerie, 1934, 16, p. 187
[9] FOSC 1934
[10] FOSC 1931
[11] FOSC 1935
[12] FOSC 1944
[13] FOSC 1987
The FOSC (Feuille Officielle Suisse du Commerce) is available on E-periodica
Notes :
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