| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Wing fittings | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Doors and windows | |
| #4 | Hinges for doors or windows | |
| #5 | Railway bodies | |
| #6 | Springs | |
| #7 | Locks | |
| #8 | Machines for making railways | |
| #9 | Structural elements | |
| #10 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rio Joseph | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE620121C | Flat spring mechanism for the static compensation of preferably flat masses |