For Electrical Power Distribution Systems And Devices Patents (Class 361/601)
- Truck type (Class 361/606)
- Drawer type (Class 361/608)
- Pivoted support means (Class 361/610)
- Busbar arrangements (Class 361/611)
- With interlock (Class 361/615)
- Gas insulated (Class 361/618)
- Having gas circuit breaker (Class 361/619)
- Having transformer (Class 361/620)
- Having isolating switch (Class 361/621)