| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 11 | |
| #2 | Switzerland | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Roof coverings | |
| #2 | Shaping clay |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kandler Franz | 13 |
| #2 | Franz Kandler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH289924A | Double roof tiles, as well as method and device for its manufacture. | |
| AT170397B | Double roof tiles and tile roof made from this | |
| GB191128743A | Improvements in Roofing Tiles. |