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B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
B02C23/02—Feeding devices
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FR64180D1953-11-101953-11-10Perfectionnements apportés au broyage du laitier granulé ou matières analogues, pour l'obtention d'un liant hydraulique
ExpiredFR64180E
(fr)
Perfectionnements apportés aux moyens pour amortir ou limiter les mouvements d'une masse en déplacement alternatif, notamment pour marteaux pneumatiques
Perfectionnements aux machines pour l'application d'un revêtement (par exemple de ciment ou de plâtre) aux moellons de construction, briques et éléments similaires