A device to prevent black oil from entering the furnace during a power outage
دستاه جلوگيري ازورودنفت سياه دركوره هنگام قطع برق
احمد عطائي
| Type | Patent |
|---|---|
| Status | Registered |
| Application no. | 3000004791 |
| Filed | 1962-04-28 |
| Registration no. | 16135 |
| Owner | احمد عطائي |
History
- — Registered
Source: Iranian official gazette and industrial property registry records