73331778
Oct 9, 1981
Sep 4, 1984
Manually Settable Relay Switches Adapted for Connection to a Power Network, and Controlling Power Loads for Programmed ON/OFF Operation Based on Time, for Example Minutes, Hours, Days, Days of Weeks, Weeks and the Like, and Fractions Thereof or on Count or on Temperature or on Light Level or on Combination of the Foregoing
Electrical and Scientific Apparatus