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 |