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A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
A01B3/00—Ploughs with fixed plough-shares
A01B3/36—Ploughs mounted on tractors
A01B3/40—Alternating ploughs
A01B3/42—Turn-wrest ploughs
A01B3/426—Turn-wrest ploughs with a headstock frame made of two or more parts
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FR1169343D1956-03-091957-03-09Dispositif automatique de renversement, pour charrue attelée à un tracteur pourvu d'un vérin hydraulique de levage
ExpiredFR1169343A
(fr)