Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365224 | Core lamination for shell-type cores, particularly for transformers | Karl Philberth | 1982-12-21 |
| 4361823 | Core laminations for shell-type cores, especially for transformers | Karl Philberth | 1982-11-30 |
| 4357587 | Core laminations, particularly for transformers | Karl Philberth | 1982-11-02 |