| http://www.w3.org/ns/prov#value | - 1991Illinois Tool WorksWeb control means and method for bag making machineUS5014499Mar 15, 1990May 14, 1991Zip-Pak, IncorporatedStretch stress relief for bag thermo-cross-seals in vertical form, fill and seal machinesUS5036643May 9, 1990Aug 6, 1991Package Machinery Company, Bodolay/Pratt DivisionForm, fill, seal and separate packaging machine for reclosable containers including means for applying
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