| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Furniture and games | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Household appliances | |
| #3 | Unspecified technologies | |
| #4 | Bolts for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Decayeux Etienne | 11 |
| #2 | Deswarte Serge | 4 |
| #3 | Soufflet Claude | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2615891A1 | DISC COMBINATION LOCK COMPRISING AUTOMATIC INTERFERENCE MECHANISM ON CLOSURE | |
| FR2603934A1 | LETTERBOX CLOSING DEVICE COMPRISING A MOBILE MOUNTED LOCKING SHEET | |
| FR2603644A1 | Device for closing a letterbox, comprising a slidingly-mounted lock bolt | |
| FR2581043A1 | HOUSING HAVING A DOOR WHOSE LOCKING MEANS ARE NOT ACCESSIBLE FROM THE OUTSIDE | |
| DE3220004A1 | Letter-box to be built into a wall |