US PATENT SUBCLASS 280 / 32.7
.~ Riding attachment
Current as of: June, 1999
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DEFINITION
Classification:        280/32.7  
(under subclass 29) Apparatus comprising a wheeled vehicle  having a seat or station adapted to carry an operator or  attendant and also adapted for attachment to another vehicle  (e.g., an agricultural implement).  
(1)  Note.  The wheeled vehicle must not carry any load other  than the operator and must not support any of the weight of  the implement when in operation.  
SEE OR SEARCH THIS CLASS, SUBCLASS: 
32.5+, for a wheeled vehicle having a seat or station for a  workman engaged in manual labor on or adjacent to the  ground.  
SEE OR SEARCH CLASS 
172, Earth Working,  
433,  for a significantly claimed agricultural implement  having a riding attachment.