Inventor
FERRELL ROBERT A
US6 patents
⚠️ This page may combine multiple inventors who share the name “FERRELL ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KCL CORP
5 patentsUS4241865ADec 30, 1980
Reclosable shipping sack and method
KCL CORP151 citations95
US4262581AApr 21, 1981
Method and apparatus for making printed gusset bags
KCL CORP59 citations94
US4637063AJan 13, 1987
Reclosable bag with sealed laminated liner and method
KCL CORP180 citations93
US4415386ANov 15, 1983
Method and apparatus for assembling and attaching zipper closure strips to sacks
KCL CORP72 citations92
US4534752AAug 13, 1985
Apparatus and method for securing top ends of sack gussets
KCL CORP40 citations86