Matches 51 - 63 out of 63 < 1 2
Match Document Document Title
4311477 Bag for cultivating mushrooms  
A bag for cultivating mushrooms constructed at least in part from a microporous film which has gas-permeability but does not pass bacteria and infectious microbes.
4230029 Cutting assembly useful in bag machines  
A bag machine for permitting action on multiple widths of web and capable of high speed operation. A rigidifying beam supports the heat seal bar. The heat seal bar is thermally isolated from the...
4138932 Process for producing reclosable bags  
A method is provided for producing a reclosable plastic bag formed of heat sealable material. A web of the material is fed to a main folding station. A continuous length of a closure strip, capable...
3921506 Apparatus for the manufacture of dunnage bag liners  
Apparatus for the manufacture of inflatable liners for disposable dunnage bags. The apparatus includes means for measuring and severing an indefinite length of flattened tubular plastic material...
3411968 Method of incorporating a tear string in a thermoplastic web  
3254828 Flexible container strips  
3234705 Method of making a package  
3214312 Method and apparatus for producing flexible bags having transverse bottoms  
3195289 Package making device  
2944469 Machines for the production of bags consisting at least on their inside of thermoplastic material  
2923115 Sealing mechanism for packaging machines  
2824685 Assembly of series-connected envelopes and method of making same  
3618477 Title is not available  
Matches 51 - 63 out of 63 < 1 2