Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337607 | Tongue and groove boards with spacers permitting expansion, and method of making the same | — | 1982-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337607 | Tongue and groove boards with spacers permitting expansion, and method of making the same | — | 1982-07-06 |