| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 22 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements | |
| #3 | Engines, pumps and turbines | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Measuring force, work and fluid pressure | |
| #2 | Venting or aerating devices | |
| #3 | Special measuring | |
| #4 | Lubricating | |
| #5 | Preheating for stem generation | |
| #6 | Servomotors | |
| #7 | Pumps | |
| #8 | Supplying combustion engines | |
| #9 | Weighing | |
| #10 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Biettron Pierre | 2 |
| #2 | Jacquier Pierre | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2601774A1 | manometer | |
| FR2535453A1 | Movement amplifier for needle measuring instrument | |
| FR2528168A1 | Pressure transmitter for use with various manometers - has saw-tooth generator and processing circuits for produced differential signal |