| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Machines | |
| #3 | Audio-visual technology | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Coin-freed | |
| #2 | Unspecified technologies | |
| #3 | Advertising | |
| #4 | Railway equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Magee Carl C | 6 |
| #2 | Johns Herman S | 4 |
| #3 | Mcgay John B | 2 |
| #4 | Nicholson George E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB529088A | Improvements in or relating to coin-controlled parking meters | |
| US2284221A | Parking meter | |
| US2088301A | Face plate | |
| US2061875A | Electrical parking device | |
| US2114534A | Electrical parking meter | |
| US2088154A | Belt driven parking meter | |
| US2065075A | Meter for vehicle parking | |
| US2118318A | Coin controlled parking meter | |
| US2088300A | Parking device | |
| US2039544A | Parking meter | |
| CA390658A | Parking meter | |
| CA390660A | Parking meter mechanism |