| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 9 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Electrical machinery and energy | |
| #3 | Measurement | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Turning | |
| #3 | Dynamo-electric machines | |
| #4 | Electric motor controls | |
| #5 | Accessories for machine tools | |
| #6 | Measuring electric variables | |
| #7 | Shafts | |
| #8 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gerentes J | 5 |
| #2 | Gerentes Jean | 2 |
| #3 | Jean Gerentes | 2 |
| #4 | Vallet Robert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES316166A1 | Rotary utility electric machine. (Machine-translation by Google Translate, not legally binding) | |
| US2807769A | Control apparatus for an electric motor | |
| US2793305A | Portable electric machine having a rotating tool | |
| GB760207A | Improvements in and relating to an electric machine having a rotating tool | |
| GB749238A | Improvements in and relating to a control apparatus for an electric motor |