|
US2102767A
|
|
Machine for forming valve bags
|
|
US2102685A
|
|
Valve-closed bag
|
|
US2163265A
|
|
Machine for manufacturing bag tubes
|
|
US1967712A
|
|
Bag
|
|
US2098247A
|
|
Automatic bag-filling and weighing machine
|
|
US2098246A
|
|
Automatic bag-filling and weighing machine
|
|
GB376967A
|
|
Improvements in or relating to multi-ply bags and method of producing same
|
|
US1933776A
|
|
Multi-ply bag and method of producing same
|
|
US2008717A
|
|
Process and machine for the manufacture of paper tubes
|
|
US2065527A
|
|
Automatic sacking and weighing machine
|
|
GB310466A
|
|
Improvements in multi-ply bags and methods of making same
|
|
US1853591A
|
|
Crinkling machine
|
|
US2042531A
|
|
Process and machine for the manufacture of tubes made of paper or like material
|
|
US1805067A
|
|
Multiply bag and method of producing the same
|
|
GB294299A
|
|
Improvement in chewing gum
|
|
US1674974A
|
|
Barrel lining
|
|
CA360254A
|
|
Valve bag manufacture
|
|
CA325854A
|
|
Multi-ply bag
|
