| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Denmark | 3 | |
| #3 | Switzerland | 2 | |
| #4 | Austria | 1 | |
| #5 | Germany | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Bolts for doors or windows | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vries N V Yzerhandel I M De | 2 |
| #2 | De Vries Abraham | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE654012C | Hanger for home furnishings | |
| US2088320A | Fastening |