Patents Assigned to Robark, Inc.
  • Earth working implement
    Patent number: 4175496
    Abstract: An earth working implement is disclosed for installing plastic netting under seeded earth for the growth of grass sod. The implement may be drawn by a tractor and is configured to continuously lay netting on the ground and automatically cover the netting with an appropriate layer of earth containing seed.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: November 27, 1979
    Assignee: Robark, Inc.
    Inventor: Glenn Rehbein