53 / | HD | PACKAGE MAKING |
285 | DF | CLOSING PACKAGES AND FILLED RECEPTACLES {7} |
376.3 | DF | .~ Package or receptacle having closure flap, e.g., carton flap, box lid, etc. {6} |
376.4 | DF | .~.~ Multiple closure flaps {4} |
376.6 | DF | .~.~.~ With means to heat or cool flap {2} |
376.7 | .~.~.~.~ With means to advance package during closing |