Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7930913 | Quick-release ring-type meter lock with keyless reset | David C. Meyer, Wayne A. Hemmerling | 2011-04-26 |
| 7896574 | Self-locking manhole cover | Eric R. Nolle | 2011-03-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7930913 | Quick-release ring-type meter lock with keyless reset | David C. Meyer, Wayne A. Hemmerling | 2011-04-26 |
| 7896574 | Self-locking manhole cover | Eric R. Nolle | 2011-03-01 |