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Publication of CH107275A4publicationCriticalpatent/CH107275A4/xx
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