| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 | |
| #2 | United States | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Hand-held cutting tools | |
| #2 | Electrically-conductive connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Antretter Richard | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US3561118A | Cutter head for dry shaver | |
| US3604111A | Electric shaver | |
| GB718986A | Improvements in or relating to electric dry shavers |