| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Bulgaria | 2 | |
| #2 | Brazil | 2 | |
| #3 | Switzerland | 2 | |
| #4 | Germany | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Hungary | 2 | |
| #8 | Poland | 2 | |
| #9 | United States | 2 | |
| #10 | South Africa | 2 | |
| #11 | Australia | 1 | |
| #12 | Bosnia and Herzegovina | 1 | |
| #13 | China | 1 | |
| #14 | Czechoslovakia | 1 | |
| #15 | Czechia | 1 | |
| #16 | Spain | 1 | |
| #17 | Italy | 1 | |
| #18 | Lithuania | 1 | |
| #19 | Romania | 1 | |
| #20 | Sweden | 1 | |
| #21 | Slovakia | 1 | |
| #22 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Springs | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tramezzani Giancarlo | 29 |
| #2 | Giancarlo Tramezzani | 3 |
| #3 | Tramezzani G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| LTIP605A | A self - locking nut | |
| CH685065A5 | Self-blocking dice. | |
| FR2558221A1 | IMPROVEMENTS ON NUTS ESSENTIAL TO VIBRATIONS |