Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722574 | Personnel detection and protection systems for use in underground mines | Philip P. Jenkins | 1988-02-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722574 | Personnel detection and protection systems for use in underground mines | Philip P. Jenkins | 1988-02-02 |