| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Spain | 4 | |
| #3 | France | 2 | |
| #4 | Austria | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Making metal sheets | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Heat-exchange device details | |
| #4 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Edmond Pignal | 4 |
| #2 | Peignen Henri Jules | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES339299A1 | Procedure for the manufacture of fins, especially for heat changers. (Machine-translation by Google Translate, not legally binding) | |
| FR1460382A | Finned tube for heat exchange | |
| FR1441016A | Process for manufacturing a finned tube for heat exchange, and machine for manufacturing such a tube by applying said process |