1795: Difference between revisions

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The famous watchmaker Abraham-Louis Breguet invents a new type by balance spring with curved up overcoil: the Breguet hairspring, named after him.

Revision as of 17:16, 3 November 2015 view source meta>Gerd-Lothar Reschke Created page with '{{Jahresmenue\|J1=1794\|J2=1795\|J3=1796\|Inhalt= * The famous watchmaker Abraham-Louis Breguet invents a new type by balance spring with curved up overcoil: the [[Bre…'	Latest revision as of 14:58, 23 July 2021 view source Sfoskett (talk \| contribs) Bureaucrats, Administrators 5,165 edits m 1 revision imported
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