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Application filed by Leopold Perrenoud, Numa SandozfiledCriticalLeopold Perrenoud
Publication of CH1800ApublicationCriticalpatent/CH1800A/fr
G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
G04D3/0028—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the escape mechanism
G04D3/003—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the escape mechanism for levers
CH1800A1890-01-281890-01-28Machine servant à la fabrication des ,,levées visibles'' pour échappements
CH1800A
(fr)