Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D310730 | Cigar ventilator | Henry A. Sielck | 1990-09-18 |
| 4733674 | Cigar ventilating device | Henry A. Sielck | 1988-03-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D310730 | Cigar ventilator | Henry A. Sielck | 1990-09-18 |
| 4733674 | Cigar ventilating device | Henry A. Sielck | 1988-03-29 |