Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4626307 | Machine and method for assembling pleated filter material and a hollow core member | Paul Cherkas, Joel L. Fritsche, John J. Groezinger, Ronald W. Streitmatter | 1986-12-02 |