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Home › Diaphragm, spherical-shell diaphragm and electroacoustic transducer, and method of manufacturing electroacoustic transducer

Diaphragm, spherical-shell diaphragm and electroacoustic transducer, and method of manufacturing electroacoustic transducer

US Patent 7438156 · Granted Oct 21, 2008

Estimated economic value: $272,000 ⓘ

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