| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 12 | |
| #2 | France | 11 | |
| #3 | Germany | 8 | |
| #4 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Agriculture | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Engines, pumps and turbines | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Vehicle transmission mounting | |
| #3 | Animal catching | |
| #4 | Crop agriculture | |
| #5 | Spraying devices | |
| #6 | Horticulture | |
| #7 | Gearing | |
| #8 | Non-positive-displacement pumps | |
| #9 | Harvesting | |
| #10 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gebr Holder | 8 |
| #2 | Holder Max | 4 |
| #3 | Gebrueder Holder | 3 |
| #4 | Breuer Franz Josef | 1 |
| #5 | Max Holder | 1 |
| #6 | Kuhn Uwe | 1 |
| #7 | Hage Ludwig | 1 |
| #8 | Mannhart Heinz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2751093A1 | Power transmission for tractor vehicle - facilitates changing from forward to backward movement by using two power couplings | |
| DE2511446A1 | Articulated tractor with load dependent anti-tipping system - has coil springs fitted to pivot fork abutment plates fixed to rear of tractor | |
| DE1961068A1 | Crop spraying pump and pipe |