US PATENT SUBCLASS 142 / 24
.~.~.~.~ Pattern guide
Current as of: June, 1999
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DEFINITION
Classification: 142/24
Machines for reducing a stick to a circular section and producing a spiral groove in its circumference by means of a rotary cutter which is guided to move toward and from the axis of the stick by a relatively-moving pattern.
SEE OR SEARCH CLASS
409, Gear Cutting, Milling, or Planing,
67+, for a machine for milling a thread or helix, which machine is provided with a pattern control mechanism.