Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455477 | Electric boiling water heater | Raymond D. Massey | 1984-06-19 |
| 4354094 | Thermostatically controlled electric continuous water heating unit | Raymond D. Massey | 1982-10-12 |