Patent US 3525041A
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| Patent number | US 3525041A |
|---|---|
| Title | Magnetic field measuring method and device effective over a wide frequency range |
| Inventors | Wim Velsink |
| Company | Tektronix Inc |
| Filing date | 1966-08-08 |
| Grant date | 1970-08-18 |
| Cites |