| http://www.w3.org/ns/prov#value | - ul 31, 1991Jul 27, 1993Gold Medal Kids, Inc.Television viewing control device and methodUS5282249Dec 18, 1992Jan 25, 1994Michael CohenSystem for controlling access to broadcast transmissionsUS5331353Mar 9, 1993Jul 19, 1994Mindmaster Inc.Device for limiting the amount of time an electrical appliance such as a television may be usedUS5353121Mar 19, 1993Oct 4, 1994Starsight Telecast, Inc.Television s
|
