US PATENT SUBCLASS 105 / 311.1
Current as of: June, 1999
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(under subclass 239) Dumping cars including (1) means utilizing energy of an external source, e.g., momentum of the car, to effect dumping; (2) means to limit the degree of opening of a door, e.g., a chain; or (3) means to drive car body closure from one position to another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
286+, for a dumping car with a door actuator.