US PATENT SUBCLASS 234 / 123
.~.~ Keyboard

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

120  DF  WITH INPUT MEANS OTHER THAN PATTERN SENSER TO CONTROL TOOL SELECTION {2}
122  DF  .~ Plural input channels {1}
123.~.~ Keyboard {1}
124  DF  .~.~.~> With auxiliary function control means {1}

DEFINITION

Classification: 234/123

(under subclass 122) Device wherein the distinct mechanisms comprise manually-actuatable levers or push-buttons.

(1) Note. In general, the actuatable levers or push-buttons found in this subclass have only one effective position and one ineffective position, as distinguished from the differentially positionable elements of subclass 121.

(2) Note. A patent disclosing novelty in keyboard or key-linkage structure, or in the connections therefrom to a tool- selecting mechanism, and not classifiable in a preceding subclass, may be placed as an original in this subclass. The broad recitation or disclosure of a key or keyboard is insufficient for this purpose.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106, for an example of a keyboard-controlled coded direct punching device.