US PATENT SUBCLASS 111 / 59
.~.~ Main and auxiliary frame

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
52  DF  .~ Frame and planting-element arrangement {4}
59.~.~ Main and auxiliary frame {3}
60  DF  .~.~.~> Plurality of auxiliaries {1}
62  DF  .~.~.~> Floating auxiliary {3}
68  DF  .~.~.~> With crank-axle lift

DEFINITION

Classification: 111/59

(under subclass 52) Devices embodying a main supporting section and a secondary section having movement with relation to each other, the main frame-section being designed to support or carry the secondary frame.