Air-current Blowout Patents (Class 218/43)
- Plural switch connected in series (Class 218/69)
- Polyphase (Class 218/71)
- With nozzle (Class 218/72)
- Contact structure (Class 218/74)
- Busbar (Class 218/75)
- Arcing chamber (Class 218/76)
- Shielding (Class 218/77)
- Operating mechanism structure or arrangement (Class 218/78)
- Grounding switch (Class 218/79)
- Disconnect switch (Class 218/80)