| Class: | 307 | ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS |
| Subclass: | 149 | |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 3 | LIGHTNING PROTECTION; Rods; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 4R | AIR TERMINALS; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 6 | EARTH GROUNDS; |
| Class: | 200 | ELECTRICITY: CIRCUIT MAKERS AND BREAKERS |
| Subclass: | 1V | MULTIPLE CIRCUIT CONTROL; Reversing; |
| Class: | 310 | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
| Subclass: | 308 | |
| Class: | 343 | COMMUNICATIONS: RADIO WAVE ANTENNAS |
| Subclass: | 849 | |
| Class: | 343 | COMMUNICATIONS: RADIO WAVE ANTENNAS |
| Subclass: | 899 | |
| Class: | 361 | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| Subclass: | 136 | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES; High voltage dissipation (e.g., lightning arrester); With magnetic means (e.g., electromagnet); For grounding line; |