| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Materials and metallurgy | |
| #3 | Thermal processes | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Structural elements | |
| #3 | Building materials | |
| #4 | Air-conditioning | |
| #5 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Louis Piralli | 10 |
| #2 | Piralli Louis | 5 |
| Publication | Filing date | Title |
|---|---|---|
| CA954664A | Assembly of panels and the like by groove-and-tongue joints | |
| ES254113A1 | Improvements in the structure of double wall partitions (Machine-translation by Google Translate, not legally binding) |