Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5145068 | Cassette album with channel-form hinges and method | Stephen Schmitz, Philip K. Sykes | 1992-09-08 |
| 4771886 | Apparatus and method for manufacturing two-ply cassette albums | — | 1988-09-20 |
| 4718550 | Thermoformed composite cassette album | — | 1988-01-12 |
| 4641750 | Two-ply cassette album and method of making same | George D. Canfield | 1987-02-10 |