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Patent Dept.
Tracing device patent drawing, 1962
US 3,055,113Tracing device1962

PD-81 · US 3,055,113

Tracing device

The Etch A Sketch mechanism, 1962 — two knobs, aluminium powder, and a stylus plotting X and Y.

Inventor
Arthur Grandjean
Patented
September 25, 1962

Finish
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Total29 €
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PD-81 · US 3,055,113 · Filed July 23, 1959 ·

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Is this a real patent?
Yes — the original drawing as filed at the U.S. Patent Office, cleaned and printed. Public domain by law.
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