Patents Assigned to Polygress Plastic GmbH
  • Bale of straw or hay
    Patent number: 4570789
    Abstract: A rolled-up bale formed of straw, hay or the like is covered with a plastics netlike band which has an end portion partially overlapping the periphery of the bale and self-held on that periphery because the rough outer particles of the straw bale penetrate the mesh of the netlike band.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: February 18, 1986
    Assignee: Polygress Plastic GmbH
    Inventors: Ulrich Fritz, Rony Kelz