Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B60
VEHICLES IN GENERAL
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B60B
VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
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15/00
Wheels or wheel attachments designed for increasing traction
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B60B15/26
Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
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