Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313400 | Lined metal tank with heat shield, indirect fired water heater and method of making same | Robert C. Walker | 1982-02-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313400 | Lined metal tank with heat shield, indirect fired water heater and method of making same | Robert C. Walker | 1982-02-02 |