| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 14 | |
| #2 | Germany | 4 | |
| #3 | Austria | 1 | |
| #4 | Belgium | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Furniture and games | |
| #3 | Textiles and paper | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Cutting | |
| #2 | Kitchen equipment | |
| #3 | Photographic composing devices | |
| #4 | Brushes | |
| #5 | Domestic washing | |
| #6 | Hand-held cutting tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Willy Zeller | 8 |
| #2 | Zeller Willy | 6 |
| Publication | Filing date | Title |
|---|---|---|
| DE2644912A1 | Multi-purpose fruit and vegetable slicer - has non-slip support bowl firmly holding slicer attachments | |
| CH590115A5 | Knife holder for cutting fruit or vegetables - has spring steel blade with loop at end for retention by ribs of baseplate | |
| CH584532A5 | Fruit or vegetable shredder - has food carried on plate which swivels and slides above knives | |
| CH563252A5 | Vegetable grater on pedestal - with base and reception plate and exchangeable grating elements |