| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Machines | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Nails | |
| #3 | Unspecified technologies | |
| #4 | Vehicle signalling and lighting | |
| #5 | Office furniture | |
| #6 | General building constructions | |
| #7 | Vehicle parts | |
| #8 | Chairs and beds | |
| #9 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brandt Eugene | 20 |
| #2 | Eugene Brandt | 17 |
| Publication | Filing date | Title |
|---|---|---|
| ES117754A1 | Locking device for at least two nuts. | |
| CA280080A | Nut-lock | |
| CA292446A | Nut lock | |
| CA304874A | Nut locking device |