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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 6370906 | Wind inlet and outlet system for an air conditioner A wind inlet and outlet case for a blower of an air conditioning system is connected to an inner machine, including a body and a faceplate. The body is separated into a wind inlet room and a wind outlet room with a lengthwise vertical wall, and the wind i... | 04/16/2002 |
| 6279279 | Aerated flooring system The invention relates to an aerated flooring system for use in athletic arenas or gymnasiums. The flooring system includes a top layer that provides a surface for the activities to be conducted on the floor. The system also includes at least one ventilati... | 08/28/2001 |
| 6101775 | Aerated flooring systems The invention relates to an aerated flooring system for use athletic arenas or gymnasiums. The flooring system includes a top layer that provides a surface for the activities to be conducted on the floor. The system also includes at least one ventilation ... | 08/15/2000 |
| 5624312 | Work-station with climate control capabilities A work station for supplying conditioned air and electrical conductors to the vicinity of a worker, for withdrawing return air from the space near the worker and for seating the worker and positioning his/her equipment. The work station includes a service... | 04/29/1997 |
| 4016858 | Floor furnace heating system A floor furnace heating system including a specially constructed floor furnace adapted to discharge heated air at floor level with a strong radially outward motion component so as to spread horizontally over most of the room area before rising due to its ... | 04/12/1977 |
