Patent US 4148042A
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Patent number | US 4148042A (click link for details and documents via Google Patents) |
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Title | Electrographic copier with one-piece belt and styli |
Inventors | Jon C. Mutton, Peter J. Unger |
Company | Tektronix Inc |
Filing date | 1977-11-11 |
Grant date | 1979-04-03 |