US PATENT SUBCLASS 234 / 20
.~ For start or stop of control from given input source

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

13  DF  WITH MEANS TO IMPOSE PROGRAMMED CONTROL OF AUXILIARY-OPERATION {6}
20.~ For start or stop of control from given input source

DEFINITION

Classification: 234/20

(under subclass 13) Device, wherein the program means effects initiation or termination of transmission of machine-controlling impulses from a specified portion of the device.

(1) Note. Included here is the conventional "column cutout bar" control which starts and stops duplicating operations at predetermined card columns, permitting an operative to insert manually keyed data in certain fields of a card.