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Gebr Junghans AG
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Gebr Junghans AG
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Publication of FR558701ApublicationCriticalpatent/FR558701A/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
G04D3/0017—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of gearworks
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(AREA)
FR558701D1922-06-011922-11-15Procédé et moule pour la fabrication de pignons ou rouages d'horlogerie par coulée à injection ou en source
ExpiredFR558701A
(fr)