US PATENT SUBCLASS 968 / 599
.~.~.~ Giving indications at a number of places each at a different time, e.g., system of alarms in a hotel, etc. [G04C 21/32]


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



968 /   HD   HOROLOGY

580  DD  PRODUCING ACOUSTIC TIME SIGNALS BY ELECTRICAL MEANS (for mechanical clocks or watches subclasses 225 and 243) [G04C 21/00] {3}
588  DD  .~ Producing the signals at adjustable fixed times [G04C 21/16] {7}
597  DD  .~.~ With provision for a number of operations at different times, e.g., ringing the bells in a school, etc. [G04C 21/30] {3}
599.~.~.~ Giving indications at a number of places each at a different time, e.g., system of alarms in a hotel, etc. [G04C 21/32] {1}
600  DD  .~.~.~.~> By the hand(s) or handlike members closing the contacts [G04C 21/32B]