| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Austria | 3 | |
| #3 | Switzerland | 3 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Control | |
| #3 | Machines | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Registering devices | |
| #2 | Electromechanical clocks | |
| #3 | Locks | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Benzing Friedrich Ernst | 10 |
| #2 | Friedrich Ernst Benzing | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB191315830A | Improvements in or relating to Time-check Apparatus for Work People. | |
| GB191315611A | Improvements in Time-recording Apparatus for Pigeon-racing and like purposes. | |
| GB191124224A | Improvements in Workmen's Time Recorders. | |
| GB191124225A | Improvements in or relating to Workmen's Time-recorders and similar Apparatus. | |
| US1037108A | Recording-lock. | |
| GB191118398A | Controlling Door Lock. | |
| GB190425607A | Watchman's Time Recorder or Tell-tale |