Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344257 | Mine roof expansion anchor and bail element | Raymond L. Wright | 1994-09-06 |
| 5282698 | Threaded fastener, method of fabrication thereof and method of supporting a mine roof using such a fastener | Raymond L. Wright | 1994-02-01 |