US PATENT SUBCLASS 280 / 17
.~.~ Swivel and rocking
Current as of: June, 1999
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DEFINITION
Classification: 280/17
(under subclass 15) Sleds in which one sliding unit is mounted to swivel on a vertical axis, and may also rock about a lateral axis relative to the other sliding unit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124.114+, for a wheeled vehicle having running gear including a rocking and swinging axle.