| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Computer technology | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Registering devices | |
| #2 | Data recognition and presentation | |
| #3 | Punching metal | |
| #4 | Counting mechanisms | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | O'Neal Cothburn M | 11 |
| #2 | Mayo Alfred M | 9 |
| #3 | Childs George William | 7 |
| #4 | O Neal C | 2 |
| #5 | Childs Executrix By Patricia M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3891141A | Method of severing corners and punching cards | |
| US3999279A | Method of making a punch assembly | |
| US4025040A | Voting machine with punch card attachment | |
| US3934794A | Voting machine with band interlock | |
| US3977357A | Voting machine | |
| US3907196A | Voting machine | |
| US3914577A | Voting machine | |
| US3935426A | Voting machine | |
| US3971914A | Voting machine | |
| US3919544A | Voting machine | |
| US3821522A | Counter | |
| US3866826A | Voting machine | |
| US3846718A | Voting machine with punch card attachment |