Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659118 | Pipe seal connection between confronting ends of two coaxial relatively rotatable pipes | Heinrich Amsler | 1987-04-21 |
| 4586699 | Refractory plate assembly for use in sliding closure unit | Herbert Bachmann | 1986-05-06 |