Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B70/83)

Full Title

Making flexible containers, e.g. envelopes or bags > Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B70/83)

Child Classifications

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• B31B 70/142
• B31B 70/144
• B31B 70/146
• B31B 70/148
• B31B 70/16 Cutting webs
• B31B 70/20 Cutting sheets or blanks