US PATENT SUBCLASS 111 / 172
.~.~.~ Chain

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
170  DF  .~ Having depositor feature {5}
171  DF  .~.~ Endless conveyor with traps {1}
172.~.~.~ Chain

DEFINITION

Classification: 111/172

Chain:

(under subclass 171) Apparatus wherein the endless element is a series of interconnected links.