Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Dana L. Vickery | Simplex Time Recorder | 1 |
| 1 | Edward J. Salame | — | 1 |
| 1 | George C. Lison | David Clark Company Incorporated | 1 |
| 1 | Richard T. Heininger | Gem Industries | 1 |
Part of Massachusetts
4 patents · 4 inventors · 0.2/1k pop.
Ranked #4,506 of 15,417 cities Top 30%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Dana L. Vickery | Simplex Time Recorder | 1 |
| 1 | Edward J. Salame | — | 1 |
| 1 | George C. Lison | David Clark Company Incorporated | 1 |
| 1 | Richard T. Heininger | Gem Industries | 1 |
Part of Massachusetts