| Patent No. | Patent Title: |
| 4710756 | Combination smoke detector and device for containing air |
| 4691198 | Control system for diverting/equalizing electrical potentials bet... |
| 4686518 | Fault indicator having trip inhibit circuit |
| 4684917 | Low oil warning circuit |
| 4682156 | Solvent detector |
| 4680576 | Photoelectric smoke detector and alarm system |
| 4675660 | Container liquid level sensing utilizing a filling tube |
| 4675574 | Monitoring device for airfield lighting system |
| 4675661 | Light-attenuation type fire detector assembly |
| 4675662 | Machine oil deterioration detection |
| 4673924 | Maritime wind shift alarm system and method of detecting wind shi... |
| 4673927 | Apparatus for detecting and controlling the level of a gaseous fl... |
| 4670741 | Smoke detection apparatus |
| 4670742 | Monitoring system for the trigger circuit of an electrical power ... |
| 4668943 | Excessive gas flow detector |
| 4668946 | System for detecting the failure of a filament lamp |
| 4668944 | Fail safe circuit for a salinity monitor |
| 4668945 | Detector of bubbles in blood |
| 4667187 | Lamp failure monitoring system |
| 4667186 | Phase difference fault detector |
| 4663614 | Hydrocarbon detector system |
| 4660026 | Fluid state detector |
| 4656464 | Liquid level detector |
| 4654644 | Photoelectric smoke detector circuitry |
| 4654645 | Electric element breakdown detector |
| 4654643 | Pressure sensor-monitor and excessive pressure level indicator |
| 4652867 | Circuit breaker indicator |
| 4649374 | Electrostatic system monitor and method therefor |
| 4647920 | Fault detector |
| 4646070 | Oil deterioration detector method and apparatus |
| 4644333 | Gas sensor and detection system comprising such a sensor |
| 4642616 | Method and apparatus for detection of AC power failure conditions |
| 4642605 | Power failure responsive warning device |
| 4642615 | Light-scattering type smoke detector |
| 4639719 | Apparatus for monitoring circuit integrity |
| 4636777 | Monitoring arrangement for a gas turbine spark ignition system |
| 4635044 | Failed fuse detector and detecting method for rotating electrical... |
| 4635045 | Failed fuse detector and detecting method for rotating electrical... |
| 4635043 | Level indication |
| 4633241 | Method of automated in-place SCR testing |