Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355132 | Multi-layered shingle and method of making same | Walter F. Becker, Keith Rooks | 2002-03-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355132 | Multi-layered shingle and method of making same | Walter F. Becker, Keith Rooks | 2002-03-12 |