| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | France | 11 | |
| #3 | United Kingdom | 3 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Measurement | |
| #3 | Transport | |
| #4 | Mechanical elements | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Registering devices | |
| #2 | Electromechanical clocks | |
| #3 | Wheelchairs and sledges | |
| #4 | Mechanically-driven clocks | |
| #5 | Locks | |
| #6 | Mechanical control devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Benzing Friedrich Ernst | 11 |
| #2 | Ernst Benzing Friedrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB342124A | Improvements in or relating to time control apparatus for carrier pigeon races | |
| GB346485A | Improvements in or relating to time control apparatus for carrier pigeon races | |
| GB255867A | Improvements in clockwork escapements particularly for use with pigeon racing apparatus |