| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electromechanical clocks | |
| #2 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Emanuel Andersson Hjalmar | 1 |
| #2 | Daniel Andersson Joel | 1 |
| #3 | Anderson Hjalmar Emanuel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190627714A | Improvements in Electrical Clocks. | |
| GB190404953A | Improvements relating to Apparatus for Automatically Interrupting an Electric Current | |
| CA79213A | Electrically wound clock |