Jean Schwarzentrub
Timeline
- 1892 - Jean Schwarzentrub resigns from P. Obrecht & Cie of Grenchen
- 1893 - August 1 - Jean Schwarzentrub and Arthur Müller form Schwarzentrub & Müller in Grenchen
- 1893 - December 26 - Schwarzentrub & Müller is dissolved with the operation taken up by Jean Schwarzentrub alone
- 1897 - July 6 - Friedli, Triebold & Cie is established as a maker and finisher of ebauches and escapements; Louis Friedli and Jean Schwarzentrub are managers
- 1898 - December - Jean Schwarzentrub is bankrupt and his namesake company is deleted
- 1901 - September 1 - Schwarzentrub and Adolf Michel establish Ad. Michel & Cie, Ebauches-Fabrik in Lengnau
- 1903 - June 26 - Ad. Michel & Cie, Ebauches-Fabrik is moved to Grenchen
- 1904 - February 9 - Ad. Michel & Cie is taken over by a new firm, Obrecht-Hugi & Cie, in Grenchen, with Emil Obrecht-Hugi and Jean Schwarzentrub as directors; the firm is located at Mitteldorfstrasse 36
- 1932 - September 17 - The firm of Obrecht-Hugi is deleted following the death of Emil Obrecht-Hugi