| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 13 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Control | |
| #3 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Alarm systems | |
| #3 | Bolts for doors or windows | |
| #4 | Casings and printed circuits | |
| #5 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Muel Jean-Jacques | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2454499A1 | lock with key actuated box notched laminar slides - uses inboard box wings in notches casing bore rib to stop rotation box when at rest | |
| FR2454501A1 | Door lock with burglar alarm - comprises switch whose contacts are opened by pressure against door | |
| FR2454659A1 | Burglar detection panel for door - comprises large single track printed circuit connected to alarm to initiate warning if circuit is broken at any point |