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Gisbert Glasmachers
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Ulm, Danube, DT
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Patent Grant
Signal playback system transducer with optical resonance cavity
Patent number
3,941,945
Issue date
Mar 2, 1976
TED Bildplatten Aktiengesellschaft, AEG-Telefunken, TELDEC
Manfred Borner
G11 - INFORMATION STORAGE