| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 18 | |
| #2 | Argentina | 1 | |
| #3 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Teaching materials | |
| #2 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | De Oliveira J | 16 |
| #2 | Machado C | 1 |
| #3 | Elpidio Antunes Ferreira | 1 |
| #4 | Ferreira E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR8102113A | Compressed air engine for motor vehicles | |
| BR8005378A | Process for fixing diamonds in steel drills and drills so obtained | |
| ZA7300488B | New presentation in records for the study and identification of sounds in particular and music in general |