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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Application filed by IG Farbenindustrie AGfiledCriticalIG Farbenindustrie AG
Application grantedgrantedCritical
Publication of FR901678ApublicationCriticalpatent/FR901678A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
B21B21/02—Rollers therefor
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Engineering & Computer Science
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Mechanical Engineering
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Metal Extraction Processes
(AREA)
FR901678D1940-09-041944-01-31Procédé et dispositif pour le laminage à froid, au pas de pèlerin, de barres et tubes à l'aide de cylindres cannelés
ExpiredFR901678A
(fr)
Procédé électrothérapeutique ou électrochirurgical par oscillations entretenuesà haute et très haute fréquence et dispositif pour l'exécution de ce procédé