Electret Microphone Patent Print
Patent No. US3118022 · 1964
Invented by Gerhard M. Sessler & James E. West
Vintage 1964 patent drawing of the electret microphone by Gerhard M. Sessler & James E. West. Museum-quality archival giclée print.
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About This Print
Vintage 1964 patent drawing of the electret microphone by Gerhard M. Sessler & James E. West. Museum-quality archival giclée print.
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