Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6868921 | Boring tool tracking fundamentally based on drill string length, pitch and roll | Guenter W. Brune, John E. Mercer | 2005-03-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6868921 | Boring tool tracking fundamentally based on drill string length, pitch and roll | Guenter W. Brune, John E. Mercer | 2005-03-22 |