| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Finishing work on buildings | |
| #3 | Measuring distances | |
| #4 | Locks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Seelhof Walter | 10 |
| #2 | Walter Seelhof | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2525430A1 | Intruder resistant roller shutter locking mechanism - with bolt as lever swivelling about slat parallel axis and fixing latch |