Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4250944 | Process for performing aluminothermic rail connection weldings as well as multipart casting mold for performing the process | — | 1981-02-17 |
| 4247074 | Casting mold for aluminothermically welding rails together | Josef Stratmann, Gerhard Skreba | 1981-01-27 |