Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B60
VEHICLES IN GENERAL
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B60D
VEHICLE CONNECTIONS
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1/00
Traction couplings; Hitches; Draw-gear; Towing devices
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B60D1/24
characterised by arrangements for particular functions
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B60D1/243
for protection in case of crash, collision, impact or the like
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B60D1/244
involving weakened zones in the hitches
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