| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Civil engineering | |
| #3 | Machine tools | |
| #4 | Mechanical elements | |
| #5 | Transport | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Crop agriculture | |
| #2 | Couplings | |
| #3 | Ladders | |
| #4 | Earth drilling | |
| #5 | Toys | |
| #6 | Harvesting | |
| #7 | Venting or aerating devices | |
| #8 | Scaffolding | |
| #9 | Handles for hand implements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wolf August | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB324267A | Method of fixing handles to agricultural implements and tools | |
| DE542851C | Handle attachment |