Fire Extinguishers Patents (Class 169)
- For railway car heaters (Class 169/55)
- Condition responsive control (Class 169/56)
- For vehicles (Class 169/62)
- For motion picture apparatus (Class 169/63)
- For mine (Class 169/64)
- For cooking installation (Class 169/65)
- For storage tank (Class 169/66)
- For oil or gas well (Class 169/69)
- With specific extinguishant applying means, or means for providing access to fire (Class 169/70)
