US PATENT SUBCLASS 111 / 97
.~.~ Multiple-staff control

Current as of: June, 1999
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111 /   HD   PLANTING

89  DF  DIBBLING {3}
92  DF  .~ Manually-operated implements {5}
97.~.~ Multiple-staff control

DEFINITION

Classification: 111/97

(under subclass 92) Devices including a plurality of pivoted staves adapted to cooperate in forming a cavity in the ground, the dropping of material being under the control of said staves.