Browsing by Subject "47/73"

Now showing items 1-3 of 3

    • Air-root-pruning Container 

      Whitcomb, Carl E.; Board of Regents for the Oklahoma Agriculture and Mechanical Colleges Acting for an in Behalf of Oklahoma State University (U.S. Patent and Trademark Office, 1985-04-16)
      A vertical air-root-pruning container involving a series of vertical air gaps displaced around the sidewall of a container. The air gaps are alternately displaced outwardly or inwardly to air-prune spiral root growth in ...

    • Air-root-pruning Container 

      Whitcomb, Carl E.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1985-02-05)
      A vertical air-root-pruning container involving a series of vertical offsets or air gaps displaced around the sidewall of a container. The offsets or air gaps are alternately displaced outwardly or inwardly to air-prune ...

    • Root-pruning Container 

      Whitcomb, Carl E.; Board of Regents for the Oklahoma Agricultural & Mechanical Colleges acting for Oklahoma State University (U.S. Patent and Trademark Office, 1984-04-17)
      A root-pruning container involving a series of vertical pyramid like staircase stepped surfaces essentially parallel to the sidewall of said container and displaced to the inside of said container, wherein the vertical and ...