US PATENT SUBCLASS 234 / 34
.~.~.~.~ With verifier (data comparator)

Current as of: June, 1999
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234 /   HD   SELECTIVE CUTTING (E.G., PUNCHING)

22  DF  WITH MEANS TO IMPOSE RANDOMLY ACTUATED CONTROL OF AUXILIARY-OPERATION {3}
30  DF  .~ Stopping means {1}
32  DF  .~.~ Upon detection of machine defect or misoperation {1}
33  DF  .~.~.~ With means to check on tool actuation {1}
34.~.~.~.~ With verifier (data comparator)

DEFINITION

Classification: 234/34

(under subclass 33) Device in which the signal- or impulse-generating means responds to a disparity between the selection control impulses received by the device and the consequent operations performed by the device.