Condition Responsive Indicating System Patents (Class 340/500)
- Acknowledgement (Class 340/502)
- Answer-back (Class 340/504)
- Interrogator-responder (Class 340/505)
- Alarm system supervision (Class 340/506)
- Testing (Class 340/514)
- Selection from a plurality of sensed conditions (Class 340/517)
- Predetermined rate of occurrence (Class 340/526)
- Time delay (Class 340/527)
- Intrusion detection (Class 340/541)
- Article placement or removal (e.g., anti-theft) (Class 340/568.1)
- Human or animal (Class 340/573.1)
- Flame (Class 340/577)
- Ice formation (Class 340/580)
- Thermal (Class 340/584)
- Radiant energy (Class 340/600)
- Meteorological condition (Class 340/601)
- Fluent material (Class 340/603)
- Condition of electrical apparatus (Class 340/635)
- Electrical characteristic (Class 340/657)
- Force or stress (Class 340/665)
- Acceleration (Class 340/669)
- Velocity (Class 340/670)
- Article transport (Class 340/673)
- Of geometrical gauge (Class 340/678)
- Machine condition (Class 340/679)
- Position responsive (Class 340/686.1)