.~ Locking means actuated in response to a condition {4}
669
.~.~ Failure of power supply
DEFINITION
Classification: 400/669
Failure of power supply:
(under subclass 668) Subject matter wherein the preventing means is made effective as a result of the absence of external power to a typewriter that requires external power for its operation.
(1) Note. The structure defined locks a mechanism in an electric typewriter, whereby if a key* has been inadvertently pressed while power is not applied thereto, that key will not
cause operation when power is reapplied to the typewriter.
