US PATENT SUBCLASS 111 / 12
.~.~ Main and auxiliary frame

Current as of: June, 1999
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111 /   HD   PLANTING

130  DF  BROADCASTING {3}
11  DF  .~ Machines with scatterer {1}
12.~.~ Main and auxiliary frame

DEFINITION

Classification: 111/12

(under subclass 11) Implements embodying also a main supporting-frame section and an auxiliary frame section, the latter usually composed of or carrying the earth-working elements and movably relatively to the main frame-section.