| 392 / | HD | ELECTRIC RESISTANCE HEATING DEVICES |
| * | DD | HEATING DEVICES (CLASS 219 SUBCLASS 200) {11} |
| 465 | DF | .~ Continuous flow type fluid heater {12} |
| 473 | ![]() | .~.~ Fluid heater carried on discharge member {2} |
| 474 | DF | .~.~.~> With flow control valve (e.g., faucet, etc.) {1} |
| 476 | DF | .~.~.~> Hand-held discharge member {1} |