US PATENT SUBCLASS 198 / 756
.~.~.~ Having helical path

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

618  DF  CONVEYOR SECTION {26}
750.1  DF  .~ Reciprocating conveying surface {7}
752.1  DF  .~.~ Vibratory conveying member {7}
756.~.~.~ Having helical path {1}
757  DF  .~.~.~.~> Confined within a bowl

DEFINITION

Classification: 198/756

(under subclass 752.1) Apparatus wherein the conveyor member includes a surface that extends around an axis, as well as along said axis.