| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 3 | |
| #3 | Spain | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Crop agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spalding George | 13 |
| #2 | Robbins John Steele | 1 |
| #3 | Robbins John-Steele | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US991461A | Frame for tilling-machines. | |
| CA124499A | Frame for tilling machines | |
| CA123787A | Tilling machine | |
| GB190929738A | Improvements in and relating to Tilling Machines or Rotary Disk Ploughs. | |
| GB190929739A | Improvements in Frames for Rotary Disk Ploughs and other Tilling Machines. | |
| US1007399A | Concave disk. | |
| US942469A | Tilling-machine. | |
| US955107A | Steering-gear for tilling-machines. | |
| CA104414A | Plough | |
| US801410A | Disk plow. | |
| US793240A | Rotary disk plow. | |
| GB189614485A | Improvements in Plows and Rotary Disk Plows. |