| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 1 | |
| #2 | Belgium | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Czechoslovakia | 1 | |
| #5 | German Democratic Republic | 1 | |
| #6 | Finland | 1 | |
| #7 | Ireland | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Poland | 1 | |
| #12 | Sweden | 1 | |
| #13 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Construction of roads | |
| #2 | Filing and indexing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nielsen Niels J O | 3 |
| #2 | Nielsen Niels Jorgen Ollegaard | 3 |
| #3 | Kaaru Fuiripu Niirusen | 1 |
| #4 | Noeru Shidonii Deibidoson Utsu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH633599A5 | Salt and / or sand spreader. | |
| ATA671078A | Salt and / or sand spreader | |
| JPS51116727A | Visible corder |