US PATENT SUBCLASS 188 / 32
.~ On ground
Current as of: June, 1999
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DEFINITION
Classification:        188/32  
The brakes are located on the ground and not attached to the  vehicle.  
(1)  Note.  Chocks are found in this subclass.  
SEE OR SEARCH THIS CLASS, SUBCLASS: 
62+, for brakes for track guided vehicles mounted on a track  and not to the vehicle.  
SEE OR SEARCH CLASS 
293, Vehicle Fenders,  
7, for a chock block for a vehicle fender device with car  control.  
410, Freight Accommodation on Freight Carrier,  
4+, for chocks or cradles for the wheel of a vehicle  accommodated on a freight carrier during shipment; note  subclasses 7+ for structure retaining the vehicle on the  carrier which may further include the chock or cradle for  abutment purposes; in particular, note the indented  subclasses 19+ for hub or axle retainer structure and wherein  a wheel chock, as well, may be provided.  See too, subclass  30 for a vehicle wheel cradle or chock, absent retainer  means; and subclasses 49+ for a cradle or chock for a  cylindrical article in transit on a freight carrier and which  is not mounted on a stowed vehicle.  D12, Transportation,  
217, for a wheel chock.