Patent US 4496438A
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| Patent number | US 4496438A (click link for details and documents via Google Patents) |
|---|---|
| Title | Bath composition and method for copper-tin-zinc alloy electroplating |
| Inventors | Raymond L. Helton, Douglas W. Trobough, Marianne McPherson |
| Company | Tektronix Inc |
| Filing date | 1983-06-24 |
| Grant date | 1985-01-29 |