Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252111 | Expandable multi-ply obliquely oriented honeycomb filter media | Victor V. Spencer, deceased, Leonid A. Bagrin | 1993-10-12 |
| 5192602 | Louvered filter and paint arrestor | Victor V. Spencer, deceased, Leonid A. Bagrin | 1993-03-09 |