| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 15 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Percussive tools | |
| #2 | Accessories for machine tools | |
| #3 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holzaepfel Jakob | 4 |
| #2 | Hozaepfel Jakob | 1 |
| #3 | Holzaepfel Jacob | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH636796A5 | Electropneumatic hammer with a catch ring for the percussion piston | |
| CH611545A5 | Portable percussive or rotary percussive hammer driven by electric motor and having a housing space containing the parts in need of lubrication |