Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602174 | Method and apparatus for sealing a drawtape to a hem of a thermoplastic film structure | Gregory Haverfield, David A. Bryniarski | 2003-08-05 |
| 4753629 | Cam driven hem sealer | Earle R. Powell | 1988-06-28 |