| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Electrically-conductive connections | |
| #3 | Resistors | |
| #4 | Installation of electric cables | |
| #5 | Electric discharge tubes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mertig Dipl-Ing Johannes | 3 |
| #2 | Goebel Fritz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE742586C | Step switch, especially for radio and news equipment | |
| DE742585C | Step switch, especially for radio and news equipment | |
| DE742584C | Step switch | |
| DE488112C | Contact spring, especially for rotary switches |