US PATENT SUBCLASS 111 / 904
.~ Population control function

Current as of: June, 1999
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111 /   HD   PLANTING

903  DF  MONITOR {1}
904.~ Population control function

DEFINITION

Classification: 111/904

Population control function:

Collection of art under 903 specifically relating to control elements which change the rate of dispensing in a planting machine responsive to a sensed undesired rate.