| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 16 | |
| #2 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Planting | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | La Dow Charles | 17 |
| Publication | Filing date | Title |
|---|---|---|
| US2491739A | Farm waste disintegrating machine | |
| CA75772A | Elastic joint | |
| CA59115A | Ploughshare and point | |
| CA7884A | Improvements in harrow cultvators | |
| CA14208A | Improvements on sulky harrows | |
| CA45799A | Clasp | |
| CA24920A | Spring tooth harrow | |
| CA23017A | Disk harrow | |
| CA14770A | Improvements on sulky harrows | |
| CA32727A | Harrow | |
| CA45312A | Clasp | |
| CA44580A | Harrow | |
| CA45826A | Clasp | |
| CA35846A | Harrow | |
| CA50312A | Art of and means for reproducing the working edges of agricultural or other implements | |
| CA45800A | Clasp | |
| CA45753A | Sheet metal spring |