| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 19 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Transport | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Crop agriculture | |
| #2 | Motor vehicles | |
| #3 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Glasier Harold H | 20 |
| Publication | Filing date | Title |
|---|---|---|
| US1973310A | Lever digger | |
| US1990900A | Compensating drawbar | |
| US1973309A | Ground turner | |
| US1996510A | Mechanical tiller | |
| US1978492A | Lever plow | |
| US1886005A | Power plow | |
| US1869961A | Power driven spader | |
| US1886335A | Power spader | |
| US1865898A | Rim gear drive tractor | |
| US1860534A | Power actuated furrow slicer | |
| US1840501A | Swinging drawbar | |
| US1889984A | Lever spade | |
| US1804412A | Traction frame | |
| US1818551A | Oscillating spader | |
| US1827429A | Mechanical spader | |
| US1797501A | Power-actuated furrow detacher | |
| US1818550A | Traction device | |
| US1751694A | Soil-tilling device | |
| US1235200A | Meter. | |
| CA318567A | Soil tilling device |