Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-04-24
2000-04-11
Tong, Nina
Communications: electrical
Condition responsive indicating system
Specific condition
3406861, 348 1, G08B 2100
Patent
active
060492864
ABSTRACT:
A system having an attachable sensor for collecting television program data is provided. A first plate is attached to a surface, such as the side of a television set. A second plate, attached to the first plate, is part of the sensor and is attached to an actuator which activates a switch upon detachment of the plates from one another.
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Statistical Research, Inc.
Tong Nina
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