| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | Germany | 5 | |
| #3 | Spain | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Making forged metal products | |
| #3 | Forging | |
| #4 | Metal tempering | |
| #5 | Sawing | |
| #6 | Venting or aerating devices | |
| #7 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Max Liebergeld | 8 |
| #2 | Liebergeld Max | 5 |
| Publication | Filing date | Title |
|---|---|---|
| ES216643A1 | Stretching procedure for the manufacture of cartridge sheets (Machine-translation by Google Translate, not legally binding) | |
| ES211403A1 | Procedure for molding in cold hollow metal bodies, preferably steel, no tension (Machine-translation by Google Translate, not legally binding) |