| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 16 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machine tools | |
| #3 | Electrical machinery and energy | |
| #4 | Audio-visual technology | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Foundry moulding | |
| #2 | Making metal sheets | |
| #3 | Punching metal | |
| #4 | Making forged metal products | |
| #5 | Electric discharge tubes | |
| #6 | Casting metal | |
| #7 | Alloys | |
| #8 | Generating mechanical vibrations | |
| #9 | Metal tempering | |
| #10 | Loudspeakers and microphones |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ignatiev V N | 1 |
| #2 | Borsuk P A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2382290A1 | Self curing moulding compsn. for casting moulds and cores - with refractory filler, aq. alkali silicate binder and propylene carbonate as hardener | |
| FR2253408A5 | Reheating furnace, esp. for steel - using non-oxidising atmos. to minimise scale formation on billets |