Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6857823 | Earthen retaining wall having flat soil reinforcing mats which may be variably spaced | William K. Hilfiker | 2005-02-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6857823 | Earthen retaining wall having flat soil reinforcing mats which may be variably spaced | William K. Hilfiker | 2005-02-22 |