Patent US 5149182A
Jump to navigation
Jump to search
| Patent number | US 5149182A (click link for details and documents via Google Patents) |
|---|---|
| Title | Optical filter for an optical measurement instrument |
| Inventors | Peter Keller |
| Company | Tektronix Inc |
| Filing date | 1991-05-02 |
| Grant date | 1992-09-22 |