Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964425 | Structure of an ashtray, capable of self-cleaning and automatic fire-extinguishing | — | 1990-10-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964425 | Structure of an ashtray, capable of self-cleaning and automatic fire-extinguishing | — | 1990-10-23 |