| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 3 | |
| #2 | Austria | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | United States | 2 | |
| #5 | Canada | 1 | |
| #6 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Measuring electric variables | |
| #2 | Coin-freed |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gowlland George Lewis | 7 |
| #2 | Lewis Gowlland George | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190209317A | Improvements in Electric Quantity Meters. | |
| CA77911A | Electric current meter | |
| US706406A | Current-meter. | |
| GB190118962A | Prepayment Electric Meters. | |
| US706047A | Prepayment electric meter. |