| 136 / | HD | BATTERIES: THERMOELECTRIC AND PHOTOELECTRIC |
| 243 | DF | PHOTOELECTRIC {2} |
| 244 | ![]() | .~ Panel or array {5} |
| 245 | DF | .~.~> Lightweight and collapsible or foldable |
| 246 | DF | .~.~> With concentrator, orientator, reflector, or cooling means {2} |
| 249 | DF | .~.~> Monolithic semiconductor |
| 250 | DF | .~.~> Particulate or spherical semiconductor |
| 251 | DF | .~.~> Encapsulated or with housing |