US PATENT SUBCLASS 198 / 463.6
.~.~ Plural successively operated gate means

Current as of: June, 1999
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198 /   HD   CONVEYORS: POWER-DRIVEN

463.1  DF  CONVEYOR SYSTEM FOR MOVING A SPECIFIC LOAD AS A SEPARATE UNIT {9}
463.4  DF  .~ System includes gate means {2}
463.6.~.~ Plural successively operated gate means

DEFINITION

Classification: 198/463.6

Plural successively operated gate means:

(under subclass 463.4) Apparatus wherein the system includes two or more barriers which are sequentially operated.