"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 6883720 | Toy vehicle slot track A toy vehicle slot track is disclosed with at least a pair of toy racing vehicles and at least a pair of guide slots, each guide slot in turn having a pair of exposed power supply rails. The toy vehicles are guided about the track by guide pins affixed to the toy ve... | 04/26/2005 |
| 5382021 | Horse racing game having rotating arm and tethered members A plurality of carriers are towed by a traction car moving along a guide portion provided under a travel road surface plate through flexible pulling members. Mobile models on the travel road surface plate are attracted to the towed carriers by magnets. He... | 01/17/1995 |
| 4497500 | Spring action ride-on toy An animal-simulating child's ride-on toy has head and foreleg members that are capable of being turned independently of the body, and has a unique suspension system that is accommodated in the body without disfiguring structure, thereby enhancing the life... | 02/05/1985 |
| 4326465 | Automobile tow wheel attachment A tow wheel attachment for an automobile and which is used in conjunction with an underground conveyor system comprising a tubular metal frame having a base, a pair of legs extending divergently outwardly from the base and a horizontal crossbeam interconn... | 04/27/1982 |