Revision as of 17:14, 29 December 2023 by Sfoskett(talk | contribs)(Created page with "{{Jahresmenue|J1=1889|J2=1890|J3=1891|Inhalt= * L. Lossier of Geneva, publishes his Study on the theory of watch adjustment, based on work of the same type by J. Grossmann of Le Locle. }} Category:Year")