Assertion: program clock | /r/HasProperty | programmed with punched paper tape
Facets:
value: to ring bells
type: PURPOSE
Source sentences:
text: The "program clock" is a timer that can be programmed with punched paper tape to ring bells or turn machines on and off at preprogrammed times.  at St.
text: The "program clock" is a timer that can be programmed with punched paper tape to ring bells or turn machines on and off at preprogrammed times.
text: The "program clock" is a timer that can be programmed with punched paper tape to ring bells or turn machines on and off at preprogrammed times.