| Patent No. | Patent Title: |
| 4103298 | Alarm device |
| 4101935 | Electron beam reading arrangements |
| 4099177 | Keyboard entry circuitry of the key strobing type |
| 4092635 | Humidity sensor alarm unit |
| 4091373 | Selective calling receiver |
| 4090185 | Emergency position-fixing device |
| 4090186 | Signaling device |
| 4090184 | Touch controlled switch system operable by touch inputs and coded... |
| 4090176 | Telemetric measuring apparatus for biological objects |
| 4088994 | Paralleled output self-encoding keyboard |
| 4088985 | Centralized monitoring system for gas leakage |
| 4080596 | Bingo game indicator |
| 4074324 | Instant electronic camera |
| 4074225 | Emergency detection alarm and evacuation system |
| 4074252 | Hand safety flasher |
| 4063218 | Aircraft take-off and landing system and method for using same |
| 4062006 | Combustion monitoring system |
| 4059821 | Traffic signal controller flasher for pedestrian clearance |
| 4057798 | Security system |
| 4057782 | Low altitude head up display for aircraft |
| 4057794 | Calling aids |
| 4057793 | Current carrier communication system |
| 4056813 | Passive chevron replicator |
| 4052716 | Fire and intruder detection and alarm apparatus |
| 4052718 | Enclosure alarm system |
| 4047164 | Read and write drive system for a 21/2D coincident current magnet... |
| 4045788 | Allpurpose portable scoreboard |
| 4044398 | System for interfacing keyboard-operated apparatus with electrica... |
| 4042908 | Apparatus for safety and detection of illuminating circuit |
| 4042916 | Magnetic bubble track crossover element |
| 4041389 | Nonfrequency-converting microwave radio repeater using a low powe... |
| 4041448 | Electronic railroad track marker system |
| 4041401 | Channel indicating apparatus |
| 4041478 | Memory device |
| 4040004 | Color coded vehicle guidance system |
| 4040046 | Remote data readout system for transmitting digital data over exi... |
| 4040059 | Missile body telemetry system |
| 4038633 | Detection system for automobiles and other motor-driven objects |
| 4037225 | Keyboard encoding system with electronic hysteresis |
| 4037223 | Audible alarm system for an electrical outlet |
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