CPC Subgroup
B31B 70/68 by stitching, stapling or riveting
Full Title
Making flexible containers, e.g. envelopes or bags > Uniting opposed surfaces or edges; Taping > by stitching, stapling or riveting
B31B 70/68 Making flexible containers, e.g. envelopes or bags > Uniting opposed surfaces or edges; Taping > by stitching, stapling or riveting