| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Textiles and paper | |
| #3 | Consumer goods | |
| #4 | Basic communication technologies | |
| #5 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Typewriters | |
| #3 | Sound-producing devices | |
| #4 | Data recognition and presentation | |
| #5 | Demodulation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Klemt Arthur | 10 |
| #2 | Haertl Alfred | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1046902A | Improvements in or relating to electromagnetic relays |