Published Resources Details
Journal Article
- Title
- Plough assembly for accurate seeding.
- In
- Engineers Australia
- Imprint
- vol. 81, no. 6, Institution of Engineers, Australia, Barton, ACT, 2009, p. 29
- Url
- https://search.informit.org/doi/10.3316/informit.812639793644667
- Abstract
Engineer John Ryan from Perth has been developing agricultural machines for 30 years. He is a prolific inventor and has been named the inventor/designer in more than 30 patents and registered designs. One such invention is a plough assembly shown in the diagram.