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• 22:39, 2 April 2023 Sfoskett talk contribs created page Emile Schweingruber (Created page with "Emile Schweingruber (1867-1936) was a manufacturer of balance springs and mainsprings in Saint-Imier. Emile Schweingruber was born in 1867 in Saint-Imier. The son of Christian Schweingruber, he founded a balance spring factory there in 1898 to compete with the FSR cartel. The company was initially simply called "Emile Schweingruber" (often "Ele") but was renamed "Fabrique de Spiraux de St. Imier" in 1901. The company registered the "...")