| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Packaging and shipping | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Locks | |
| #3 | General building constructions | |
| #4 | Roof coverings | |
| #5 | Bolts for doors or windows | |
| #6 | Wing fittings | |
| #7 | Lifting and pushing | |
| #8 | Indexing scheme relating to hinges | |
| #9 | Office furniture | |
| #10 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lepage Victor | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE741313C | Mortise joint for metal pipes with cross-sections of different sizes |