| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Austria | 3 | |
| #3 | Belgium | 2 | |
| #4 | France | 2 | |
| #5 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Optics | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Buttons, pins and buckles | |
| #2 | Processing photographic materials | |
| #3 | Unspecified technologies | |
| #4 | Cameras | |
| #5 | Measuring light | |
| #6 | Household appliances | |
| #7 | Photosensitive materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Urban Walter | 8 |
| #2 | Walter Urban | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2557019A1 | Egg opener with sawing knife located below support - has centering ring with bearing on base plate |