242 / | HD | WINDING, TENSIONING, OR GUIDING |
324 | DF | UNWINDING AND REWINDING A MACHINE CONVERTIBLE INFORMATION CARRIER (E.G., MAGNETIC TAPE OR PHOTOGRAPHIC FILM) {13} |
334 | DF | .~ Carrier speed or tension control {5} |
334.2 | .~.~ Diverse signal inputs {1} | |
334.3 | DF | .~.~.~> Tachometer-type signal device |