US PATENT SUBCLASS 400 / 540
.~.~.~ Spring urged to holding position

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

521  DF  FOR TYPING ON CARD IN CARD HOLDER {11}
536  DF  .~ Card holder mounted on typewriter frame {3}
539  DF  .~.~ Including finger movable away from holding position {1}
540.~.~.~ Spring urged to holding position

DEFINITION

Classification: 400/540

Spring urged to holding position:

(under subclass 539) Subject matter wherein the retaining means includes a yieldable element that provides the force to urge the record-medium* card against the surface of the platen*.

(1) Note. The typewriter of this subclass sometimes is

provided with a second element that provides additional force to urge the record-medium card against the surface of the platen.