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F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16H—GEARING
F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
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FR672311D1929-03-291929-03-29Perfectionnements aux modes d'assemblage des roues et couronnes dentées en bronze sur leur moyeu
ExpiredFR672311A
(fr)
Perfectionnements aux compositions d'allumage résistant à l'humidité applicables à la fabrication des allumettes et allumettes obtenues avec lesdites compositions