Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953193 | Fastening combination having special utility in affixing an X-ray marking device to a cassette adapted to hold X-ray film | — | 1990-08-28 |
| 4221769 | Process for preventing the formation of calcium sulphate scale | Douglas C. Harper, Stanislaw Maria Janikowski | 1980-09-09 |