| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Cycles | |
| #3 | Wheelchairs and sledges | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Perotti Dino | 10 |
| #2 | Perotti Mario | 10 |
| #3 | Dino Perotti | 2 |
| #4 | Perotti D | 2 |
| #5 | Mario Perotti | 2 |
| #6 | Perotti M | 2 |
| #7 | Perotti Dino Perotti Mario | 1 |
| #8 | Perotti Dino E Mario | 1 |
| #9 | Buffoli Sandro | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2639313A1 | Gear change for bicycles | |
| GB2109892A | A chainwheel and a pedal crank for a bicycle | |
| DE3235138A1 | BICYCLE GEAR | |
| DE2918199A1 | CENTRAL MOTION TRANSMISSION UNIT FOR BICYCLES | |
| DE2918200A1 | CONTROL AND STEERING UNIT FOR BICYCLES, MOTORCYCLES AND THE LIKE |