| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 22 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Telecommunications | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Money sorting | |
| #2 | Coin-freed | |
| #3 | Telephonic communication | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | William Patzer | 22 |
| #2 | Tratsch Walter A | 19 |
| Publication | Filing date | Title |
|---|---|---|
| GB831589A | Improvements in or relating to a coin testing device | |
| GB810031A | Improvements in or relating to coin processing devices | |
| US2310596A | Coin chute | |
| US2318520A | Coin and check separator | |
| US2258917A | Latch control | |
| US2292473A | Coin and slug detector | |
| US2321153A | Coin tester | |
| US2300696A | Coin chute | |
| US2292472A | Coin chute | |
| US2326673A | Coin chute | |
| US2277018A | Coin chute | |
| US2279488A | Coin chute | |
| US2278129A | Coin chute | |
| US2288835A | Coin chute | |
| US2279487A | Coin slide | |
| US2288834A | Coin chute | |
| US2249225A | Coin chute | |
| US2226873A | Coin chute | |
| US2277017A | Coin chute scavenging means | |
| US2239050A | Coin chute |