US PATENT SUBCLASS 105 / 395
.~ Automatic door lock
Current as of: June, 1999
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DEFINITION
Classification: 105/395
(under subclass 238.1) Cars having door locks under control of the air-brake system or the engineer or by the train or car movement.
(1) Note. The objects are to prevent passengers opening car doors while the car is moving and to prevent robbery from freight cars.
