| 194 / | HD | CHECK-ACTUATED CONTROL MECHANISMS |
| 293 | DF | INCLUDING NONCONTACTING, RELATIVELY MOVABLE PARTS CONNECTED BY CHECK {2} |
| 294 | ![]() | .~ And means to impart thrust to check to move part {2} |
| 295 | DF | .~.~> Having pivoted part {2} |
| 300 | DF | .~.~> Parts spring biased |