| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | United Kingdom | 4 | |
| #3 | Spain | 1 | |
| #4 | France | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Telephonic communication | |
| #2 | Coin-freed |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hall Frederick William | 13 |
| Publication | Filing date | Title |
|---|---|---|
| GB149361A | New or improved coin collecting means for telephone services | |
| CA180890A | Vending machine | |
| CA181592A | Stamp affixer | |
| CA145417A | Vending machine | |
| CA128650A | Vending mechanism | |
| CA128235A | Advertising device | |
| GB191005482A | Improvements in Automatic or Coin Operated Vending Machines. | |
| GB189602388A | Improved Apparatus for Straining Paper Pulp and the like. | |
| CA241544A | Telephone service coin collecting device | |
| CA200955A | Coin collecting means for telephone services |