337 / | HD | ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES |
298 | DF | THERMALLY ACTUATED SWITCHES {7} |
382 | DF | .~ With longitudinally expansible solid element {7} |
384 | .~.~ With manual or other mechanical contact control means {4} | |
385 | DF | .~.~.~> Latching or tripping means |
386 | DF | .~.~.~> Comprising mechanical advantage or force multiplying means |
387 | DF | .~.~.~> Comprising frictional clutch or lost motion means |
388 | DF | .~.~.~> With spring or other energy storage means {2} |