| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | Austria | 3 | |
| #3 | Switzerland | 3 | |
| #4 | Belgium | 1 | |
| #5 | Spain | 1 | |
| #6 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Mixing | |
| #2 | Preparing clay | |
| #3 | Pistons and sealings | |
| #4 | Preparation of materials | |
| #5 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kalich Rudolf | 12 |
| #2 | Rudolf Kalich | 3 |
| Publication | Filing date | Title |
|---|---|---|
| ES329581A1 | A device for the preparation of a cement line from cement and water. (Machine-translation by Google Translate, not legally binding) |