US PATENT SUBCLASS 172 / 126
WITH EARTH MARKER

Current as of: June, 1999
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172 /   HD   EARTH WORKING

126WITH EARTH MARKER {5}
127  DF  .~> Marker shiftable on turning
128  DF  .~> Marker adjusted upon raising implement
129  DF  .~> Ground wheel operated marker control
130  DF  .~> Multiple interconnected markers {1}
132  DF  .~> Marker swingable about longitudinal axis to both sides

DEFINITION

Classification: 172/126

(under the class definition) Apparatus comprising an earth working device in combination with means for making a mark or on the earth, which mark is to be used as a sight line for the earth working means on a subsequent pass over the field.

(1) Note. This subclass is intended to include marking devices disclosed as mounted on some earth working means (e.g., a planter) even if the earth working means is claimed only as a support. However, devices for making a mark in the earth disclosed as independent instrumentalities not mounted on some principal earth working means are treated as if they themselves were earth working devices (which they are since they mark the earth) and are classified in appropriate subclasses below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133+, for diverse earth working elements.

204+, for earth working elements alternating for right or left hand operation.

SEE OR SEARCH CLASS

33, Geometrical Instruments, 18.1+, for scribers of general utility comprising mechanically guided relatively traveling means for scratching or scoring lines.

104, Railways,

244.1, for furrow followers for guiding a vehicle along the furrow.

111, Planting,

25+, for means, combined with or disclosed in combination with a planter, for intermittently marking the earth to indicate seed depositories and subclass 33 for means for intermittently impressing on the ground a mark, or combinations of such means with means for marking an unbroken line on a field. A planter claimed by name only, combined with a marker is classifiable in Class 172.

171, Unearthing Plants or Buried Objects,

6, for unearthing device with an earth marker.