| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | United Kingdom | 2 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Optics | |
| #3 | Electrical machinery and energy | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Optical systems | |
| #3 | Gearing | |
| #4 | Constructional instrument details | |
| #5 | Special measuring | |
| #6 | Measuring length, angles and areas | |
| #7 | Capacitors and switching devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stutzer Rudolf | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB207539A | Improvements in or relating to direction finding | |
| GB171028A | Optical prism for the marking out of right angles |