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FORGES ET ACIERIES DE NORD ET
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FORGES ET ACIERIES DE NORD ET
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Publication of FR729791ApublicationCriticalpatent/FR729791A/en
B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
B66B9/10—Kinds or types of lifts in, or associated with, buildings or other structures paternoster type
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FR729791D1932-01-151932-01-15
Device for retaining the traction chains on a ramp when they break, by the action of the chain tensioning counterweight
ExpiredFR729791A
(en)