| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Canada | 3 | |
| #3 | Germany | 3 | |
| #4 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Control |
| # | Technology | |
|---|---|---|
| #1 | Coin-freed |
| # | Name | Total Patents |
|---|---|---|
| #1 | Severin Madsen Mathias Odin | 2 |
| #2 | Madsen Mathias Odin Severin | 1 |
| #3 | Madson Mathias Odin Severin | 1 |
| #4 | Severin Mathais Odin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1463170A | Automatic electric meter | |
| GB186354A | Automatic electricity meter | |
| US1500462A | Coin-controlled apparatus | |
| GB174893A | Automatic gasmeter | |
| GB171662A | Device for automatically discontinuing a service paid for by the insertion of one orseveral coins, after such service has been rendered, provided no fresh payment has been made previously thereto | |
| GB171345A | Device operatable by the insertion of a coin, for automatically starting or stopping, a mechanism with one or several revoluble shafts | |
| CA233902A | Electricity meter | |
| CA230302A | Coin controlled meter | |
| CA232634A | Gas meter |