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B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
B60B15/00—Wheels or wheel attachments designed for increasing traction
B60B15/02—Wheels with spade lugs
B60B15/10—Wheels with spade lugs with radially-adjustable spade lugs; Control mechanisms therefor
B60B15/16—Wheels with spade lugs with radially-adjustable spade lugs; Control mechanisms therefor involving gearing, e.g. gear pinions acting upon threaded shafts on the spade lugs
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FR817257D1936-05-081936-05-08Perfectionnements aux roues de tracteurs ou similaires à crampons extensibles
ExpiredFR817257A
(fr)