| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Telecommunications | |
| #3 | Measurement | |
| #4 | Chemical engineering | |
| #5 | Electrical machinery and energy | |
| #6 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Generation of oscillations | |
| #2 | Transmission | |
| #3 | Antennas | |
| #4 | Demodulation | |
| #5 | Analysing materials | |
| #6 | Magnetic or electrostatic solid separation | |
| #7 | Electrotherapy | |
| #8 | Electric discharge tubes | |
| #9 | Amplifiers | |
| #10 | Measuring electric variables |
| Publication | Filing date | Title |
|---|---|---|
| DE680316C | Antenna system | |
| DE639888C | Vibration testing machine for measuring material damping | |
| DE618777C | Arrangement for directed sending and receiving of vibration energy | |
| DE616658C | Arrangement for directional transmission using reflection surfaces, especially for short and ultra-short waves | |
| DE560139C | Device for treating the human body in the electromagnetic alternating field of a short wave generator | |
| DE595774C | Process for the pretreatment of gases to be cleaned |