US PATENT SUBCLASS 400 / 495.1
.~.~.~ By spring means

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

472  DF  KEY-BOARD OR KEY LEVER-ACTUATING MECHANISM {12}
490  DF  .~ Key-cap or key-stem structure {5}
495  DF  .~.~ Including means for mounting key cap or key stem {1}
495.1.~.~.~ By spring means

DEFINITION

Classification: 400/495.1

By spring means:

(under subclass 495) Subject matter wherein the connection between said key* cap or key includes a yieldable or resilient member.