| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | France | 3 | |
| #3 | Austria | 1 | |
| #4 | Belgium | 1 | |
| #5 | Canada | 1 | |
| #6 | Germany | 1 | |
| #7 | Spain | 1 | |
| #8 | Italy | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Electrical machinery and energy | |
| #3 | Computer technology | |
| #4 | Measurement | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Code conversion | |
| #2 | Upholstering equipment | |
| #3 | Mechanically computing digital computers | |
| #4 | Weighing | |
| #5 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Michel Charles | 6 |
| #2 | Raskin Victor | 2 |
| #3 | Charles Michel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2269144A1 | Protective face plate for mylar-type ultra-flat keyboard - for marking price in conjunction with scales, for telephone switchboard, machine tools control panels, etc. | |
| US1177960A | Feather trimming. | |
| CA356665A | Spark plug |