| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | Austria | 3 | |
| #3 | Germany | 3 | |
| #4 | France | 2 | |
| #5 | Netherlands | 2 | |
| #6 | Switzerland | 1 | |
| #7 | Denmark | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Spain | 1 | |
| #10 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Crop agriculture | |
| #2 | Animal catching | |
| #3 | Planting | |
| #4 | Clutches and brakes | |
| #5 | Cycles | |
| #6 | Mechanical control devices | |
| #7 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vissers Herbert | 13 |
| #2 | Vissers Lennard | 1 |
| #3 | Horowitz Alexandre Prof | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES327252A1 | Device for introducing inside the earth, or on the surface of this, a gaseous, liquid, pulverulent or granular material (Machine-translation by Google Translate, not legally binding) | |
| GB1092596A | A spading machine | |
| CA824440A | Implement for injecting a gas or liquid into the soil | |
| CA782822A | Spading machine | |
| CA717748A | Spading machine | |
| CA804331A | Reciprocating harrow for introducing material into the soil |