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TELEGRAPHIE PATENT SYNDIKAT
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TELEGRAPHIE PATENT SYNDIKAT
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Application grantedgrantedCritical
Publication of FR41627EpublicationCriticalpatent/FR41627E/fr
FR41627D1930-02-151930-02-15Dispositif pour l'indication de la position du fil ou du ruban vibrant dans les machines parlantes à fil d'acier
ExpiredFR41627E
(fr)
Dispositif pour éviter la production de poussières gênantes lors du transbordement de matières meubles, notamment dans les installations de transport ou d'extraction à bennes ou récipients