B61FLevel 3

RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES

**Definition:** This place covers:

GET/api/v1/systems/patent_cpc/nodes/B61F

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B61F 1/00Underframes

B61F 11/00Rail vehicles characterised by rail-engaging elements other than wheels, e.g. balls

B61F 13/00Rail vehicles characterised by wheel arrangements, not otherwise provided for

B61F 15/00Axle-boxes

B61F 17/00Lubrication specially adapted for axle-boxes of rail vehicles

B61F 19/00Wheel guards

B61F 3/00Types of bogies

B61F 5/00Constructional details of bogies

B61F 7/00Rail vehicles equipped for use on tracks of different width

B61F 9/00Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels

B61F 99/00Subject matter not provided for in other groups of this subclass

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