| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 18 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Consumer goods | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Production of brushes | |
| #2 | Brushes | |
| #3 | Machines for artistic work | |
| #4 | Milling | |
| #5 | Tools for connecting or disengaging | |
| #6 | Mechanical treatment of natural fibrous |
| # | Name | Total Patents |
|---|---|---|
| #1 | Konrad Bayer | 1 |
| #2 | Bayer Ludwig | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB328854A | An improved brush with a metal back | |
| US1742192A | Brush body of metal |