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B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
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FR758300D1933-07-131933-07-13Dispositif pour augmenter l'adhérence d'un véhicule automoteur propre à remorquer une charge
ExpiredFR758300A
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