Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357761 | Apparatus for drying enamel slip coatings on pipes | Alexandr A. Sirotinsky | 1982-11-09 |
| 4338879 | Apparatus for applying enamel slip to pipe | Alexandr A. Sirotinsky | 1982-07-13 |