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| Number | Title | Issue Date |
| 5513678 | Filling system for compressed gas tanks An automatic filling system for a compressed gas tank includes a controller that measures the rate of fill of a tank being filled in order to provide an accurate estimate of the fill time for the tank, given available source pressure.... | 05/07/1996 |
| 5458167 | Filling system for compressed gas tanks An automatic filling system for a compressed gas tank includes a controller that measures the rate of fill of a tank being filled in order to provide an accurate estimate of the fill time for the tank, given available source pressure. The controller maint... | 10/17/1995 |
| 5431203 | Compressed gas tank filling system with improved valve An automatic filling system for a compressed gas tank includes a controller that measures the rate of fill of a tank being filled in order to provide an accurate estimate of the fill time for the tank, given available source pressure. Compressed gas flow ... | 07/11/1995 |
| 4777529 | Auditory subliminal programming system An auditory subliminal programming system includes a subliminal message encoder that generates fixed frequency security tones and combines them with a subliminal message signal to produce an encoded subliminal message signal which is recorded on audio tap... | 10/11/1988 |
