| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 31 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Transport | |
| #4 | Thermal processes | |
| #5 | Materials and metallurgy | |
| #6 | Packaging and shipping | |
| #7 | Machine tools | |
| #8 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Springs | |
| #2 | Machines for making railways | |
| #3 | Vehicle suspension arrangements | |
| #4 | Burners | |
| #5 | Shafts | |
| #6 | Nails | |
| #7 | Crop agriculture | |
| #8 | Containers for goods storage | |
| #9 | Metal tempering | |
| #10 | Metal wire processing |
| Publication | Filing date | Title |
|---|---|---|
| FR2148769A5 | Radiation heating burner - having refractory fibre felt body with fuel feeding tube passing through it |