Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4600163 | Apparatus for controlled manual unrolling of rolled flexible material | John E. Hummel | 1986-07-15 |
| 4526565 | Method of making flat bottom plastic bag | John E. Hummel | 1985-07-02 |