| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 9 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Accessories for machine tools | |
| #2 | Tools for connecting or disengaging | |
| #3 | Turning | |
| #4 | Measuring length, angles and areas | |
| #5 | Shafts | |
| #6 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Deragne Maurice Marcel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1562165A | Hydraulic clamping apparatus |