| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Installation of electric cables | |
| #2 | Electrically-conductive connections | |
| #3 | Cables and insulators | |
| #4 | Nails | |
| #5 | Vehicle suspension arrangements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hofmann J Wilhelm | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE408246C | Link clamp | |
| DE395045C | Link clamp | |
| DE329419C | Sleeve connection with conical clamping cone for electrical cables | |
| DE335235C | Device for clamping electrical lines | |
| DE437118C | Support clamp for overhead lines |