US PATENT SUBCLASS 400 / 496
.~ Key lever or space-bar mounting structure (e.g., dust guard, buffer, pivot, etc.)


Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

472  DF  KEY-BOARD OR KEY LEVER-ACTUATING MECHANISM {12}
496.~ Key lever or space-bar mounting structure (e.g., dust guard, buffer, pivot, etc.)


DEFINITION

Classification: 400/496

Key lever or space-bar mounting structure (e.g., dust guard, buffer, pivot, etc.):

(under subclass 472) Subject matter wherein significance is attributed to a fulcrumed bar that is moved by pressing of a key* element or a space-bar* element on a key-board* element on a key-board*, or to the fulcrum of said bar, or to structure that serves to protect said fulcrum from the intrusion of foreign matter to said fulcrum or to a component that serves to support or stop the movement of said fulcrumed bar.

(1) Note. This subclass provides for the key lever, per se, or the space-bar lever, per se, or the dust guard adjacent to the pivot or the buffer or rest for the lever, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

467+, for a dust guard for a type-bar* action mechanism.