| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | France | 2 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Foods and drinks | |
| #3 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Harvesting | |
| #2 | Crop agriculture | |
| #3 | Wine | |
| #4 | Mixing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grenzebach Hans | 11 |
| #2 | Moertl Friedrich | 5 |
| Publication | Filing date | Title |
|---|---|---|
| DE19920073C1 | Coupling frame for front or rear of tractor has tow hitch and A-frame attached at either side to frame of tractor | |
| DE19624396A1 | Tractor driven, front-attached mower, with coupling frame attached to lifting mechanism | |
| DE19544958C1 | Disc mowing machine with several mowing discs | |
| DE19534695A1 | Rear mower that can be attached to a tractor | |
| US3946997A | Agitator for nonhomogeneous, liquid materials in a tank |