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| US4218875 | 26 aug 1977 | 26 aug 1980 | | Alarm |
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| US5079682 | 18 jul 1988 | 7 jan 1992 | | Arising aid |
| US5197941 | 30 jul 1991 | 30 mar 1993 | | Portable device for controlling Circadian Rhythm disorders |
| US5212672 | 20 nov 1991 | 18 maj 1993 | | Timing control apparatus |
| US5327331 | 3 jan 1992 | 5 jul 1994 | | Arising aid |
| US5539627 | 3 nov 1995 | 23 jul 1996 | | Tree stand locating device |
| US6011755 | 6 sep 1996 | 4 jan 2000 | Schlumberger Industries, S.A. | Electronic time switches |
| US6998736 | 28 aug 2003 | 14 feb 2006 | LG Electronics Inc. | Apparatus and method for controlling driving of linear motor |
| US7106662 | 28 aug 2003 | 12 sep 2006 | Phillip F. Acker, Jr. | Thermal alarm clock |
| USD358775 | 30 aug 1993 | 30 maj 1995 | | Alarm clock |
| USD361145 | 16 feb 1994 | 8 aug 1995 | | Clock radio activated light |
