Audio Oscillator (HP 200A) Patent Print
Patent No. US2268872 · 1942
Invented by William R. Hewlett
Vintage 1942 patent drawing of the audio oscillator (hp 200a) by William R. Hewlett. Museum-quality archival giclée print.
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About This Print
Vintage 1942 patent drawing of the audio oscillator (hp 200a) by William R. Hewlett. Museum-quality archival giclée print.
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