US PATENT SUBCLASS 198 / 603
.~.~ Superposed sections forming an ascending or descending zigzag conveying path

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

570  DF  CONVEYING SYSTEM HAVING PLURAL POWER-DRIVEN CONVEYING SECTIONS {18}
602  DF  .~ Forming a single conveying path {6}
603.~.~ Superposed sections forming an ascending or descending zigzag conveying path

DEFINITION

Classification: 198/603

(under subclass 602) Apparatus including a plurality of conveyors disposed one above another and alternately carrying a load in opposite directions as it is elevated or lowered.