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Your search returned 72 patents.
( 455/409 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 5301223 | Cellular telephone system with remote programming, voice responsive registration and real time billing
| August 25, 1992 |
| 5220593 | Cellular radiotelephone credit card paystation method
| March 31, 1992 |
| 5155860 | Cellular portable telephone battery pack and programmer interface
| October 12, 1990 |
| 5144649 | Cellular radiotelephone credit card paystation method
| October 24, 1990 |
| 5127040 | Radiotelephone telephone number down loading
| March 2, 1990 |
| 4965821 | Cellular mobile radiotelephone-based system for rental of mobile equipment
| December 23, 1988 |
| 4860341 | Radiotelephone credit card call approval synchronization
| February 13, 1989 |
| 4860336 | Radiotelephone credit card data communications
| January 15, 1988 |
| 4777646 | Communication system
| October 1, 1986 |
| 4776003 | Cellular mobile radio credit card system
| October 1, 1986 |
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