| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 9 | |
| #2 | United Kingdom | 2 | |
| #3 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Control | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Sound-producing devices | |
| #2 | Alarm systems | |
| #3 | Vehicle parts | |
| #4 | Vehicle signalling and lighting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Frenkel Serge | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1042516A | Improved warning device for motor vehicles | |
| GB938626A | Improvements in and relating to motor horns or hooters |