| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 16 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Berker Robert | 6 |
| #2 | Knueppel Fritz | 4 |
| #3 | Froebel Alfred | 1 |
| #4 | Koch Eduard | 1 |
| #5 | Hofe Guenther Vom | 1 |
| #6 | Spohr Guenter | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE850479C | Device for flush mounting of electrical installation equipment | |
| DE740196C | Flush-mounted box for electrical installation devices | |
| DE868019C | Wall socket for electrical installation equipment |