• All sections
• B - Performing operations; transporting
• B31B - Making containers of paper, cardboard or material worked in a manner analogous to paper
• B31B 33/60 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes, the longitudinal axes of the envelopes or bags being parallel to the direction in which the sheets or blanks are fed and having means for uniting opposed surfaces or edges, or for taping

Patent holdings for IPC class B31B 33/60

Total number of patents in this class: 4

10-year publication summary

Principal owners for this class