| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Turning | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Unspecified technologies | |
| #4 | Milling | |
| #5 | Sawing | |
| #6 | Making forged metal products |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alexander Ignatieff | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1769222A | Self-sharpening cutting instrument | |
| GB267587A | Process of manufacture of cutting, piercing, and the like instruments | |
| GB261166A | Process of manufacture of cutting, piercing, and the like instruments | |
| US1607083A | Process for manufacturing cutting or piercing instruments |