US PATENT SUBCLASS 968 / 907
.~ Brought into action by radio [G04G 5/00B]

Current as of: June, 1999
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968 /   HD   HOROLOGY

906  DD  SETTING, I.E., CORRECTING OR CHANGING THE TIME-INDICATION (synchronization combined with automatic setting at regular intervals, e.g., by coded signals, etc., subclass 920) [G04G 5/00] {5}
907.~ Brought into action by radio [G04G 5/00B]