| 194 / | HD | CHECK-ACTUATED CONTROL MECHANISMS |
| 302 | DF | INCLUDING MEANS TO TEST VALIDITY OF CHECK {4} |
| 303 | DF | .~ By testing material composition {4} |
| 320 | ![]() | .~.~ Having magnetic field acting on check {3} |
| 321 | DF | .~.~.~> And scavenger mechanism {2} |
| 324 | DF | .~.~.~> And magnetically actuated deflector or stop |
| 325 | DF | .~.~.~> Speed or path of check altered {1} |