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B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
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FR564691D1922-04-081923-04-05Dispositif hydraulique à couper, tronçonner et estamper les pièces d'ouvrage métallique
ExpiredFR564691A
(fr)