| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Switzerland | 2 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Netherlands | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay |
| # | Name | Total Patents |
|---|---|---|
| #1 | Prosig Engelbert | 9 |
| Publication | Filing date | Title |
|---|---|---|
| CA146238A | Machine for the manufacture of artificial slates, etc. | |
| US1060122A | Machine for the manufacture of artificial slates and such like. | |
| GB191120679A | A Machine for the Manufacture of Artificial Slates and such like. |