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Application filed by Louis Petitpierre DavidfiledCriticalLouis Petitpierre David
Publication of CH21564ApublicationCriticalpatent/CH21564A/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
G04D3/0056—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for bearing components
G04D3/0058—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for bearing components for bearing jewels
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
CH21564A1900-10-151900-10-15Machine à percer les pierres d'horlogerie
CH21564A
(fr)