| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Bolts for doors or windows | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Hinges for doors or windows | |
| #4 | Doors and windows |
| Publication | Filing date | Title |
|---|---|---|
| FR2576629A1 | Door reinforcement device or the like. | |
| FR2570751A1 | Safety bar for shutters | |
| FR2543204A1 | Hinge device extending a hinge in place | |
| FR2539797A1 | Turnbuckle detent for shutters and the like | |
| FR2516147A1 | Adjustable penture | |
| FR2447441A1 | Hinge leaf for door or shutters - is unitary plate with eyelet at one end and angled spikes for mounting in leaf |