US PATENT SUBCLASS 111 / 37
.~.~.~.~ Intermittently controlled

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
15  DF  .~ Hill-planting machines {5}
34  DF  .~.~ Depositing mechanisms {6}
36  DF  .~.~.~ Primarily axle-driven {2}
37.~.~.~.~ Intermittently controlled {1}
38  DF  .~.~.~.~.~> Check-wire tripped {2}

DEFINITION

Classification: 111/37

(under subclass 36) The mechanism in whole or in part subject to a periodic control.

(1) Note. The word "control" as herein used includes the initiation of the actuation, as by effecting a connection or disconnection of a driving-train, rather than the actuation itself for the dispensing elements.