by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62)

Full Title

Making rigid or semi-rigid containers, e.g. boxes or cartons > Uniting opposed surfaces or edges; Taping > by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62)

Child Classifications

Navigate with arrow keys, Enter to open

• B31B 50/642
• B31B 50/644
• B31B 50/645
• B31B 50/648
• B31B 50/649
• B31B 50/66 by high-frequency electric heating