Detection device and test method (Chinese)
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2021
- Patent / Electronic Resource
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Title:Detection device and test method
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Additional title:检测装置以及测试方法
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Patent number:CN112770245
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Patent applicant:
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Publication date:2021-05-07
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Type of media:Patent
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Type of material:Electronic Resource
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Language:Chinese
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Classification:
IPC: H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS, Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler -
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