| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 2 | |
| #2 | Germany | 2 | |
| #3 | France | 2 | |
| #4 | Italy | 2 | |
| #5 | United States | 2 | |
| #6 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Machines for artistic work | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Levine J | 1 |
| #2 | Levine Jack W | 1 |
| #3 | Sprenger Edwin | 1 |
| #4 | Furantsu Baruga | 1 |
| #5 | Sprenger E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPS54125598A | Surface carving machine | |
| US3830136A | Curved surface engraver | |
| US3789732A | Machine for engraving curved surfaces |