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KR101164299B1
(ko)
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소리 입력 장치
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BE1003572A5
(fr)
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Detecteur de grains perdus pour moissonneuses.
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(en)
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Ultrasonic transducer with a piezoelectric element
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EP0598875B1
(fr)
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Dispositif de nettoyage a commande automatique, notamment pour pare-brise de vehicule automobile
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(en)
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Piezoelectric vibrational and acoustic alert for a personal communication device
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JPS6327720B2
(https=)
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(en)
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Ultrasonic transmitter-receiver
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EP0825799A2
(en)
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Reduced size electro-acoustic transducer with improved terminal
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BE538293A
(https=)
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KR20030071626A
(ko)
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초음파 탐촉자 시스템
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FR2466903A1
(fr)
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Transducteur piezoelectrique reglable pour montre
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US20100201226A1
(en)
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Piezoelectric transducer device
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JP4002520B2
(ja)
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静電マイクロホン変換器
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US4440504A
(en)
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Electronic timepiece including a piezoelectric alarm
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(en)
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Sound operated contact device
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JP7351792B2
(ja)
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収音装置
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(en)
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Telephonic receiver
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JP3896546B2
(ja)
|
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マイクロフォンユニットの保持構造
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US4309680A
(en)
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Electro-mechanical filter including mechanical resonator
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US2404764A
(en)
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Sound receiver
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US2806913A
(en)
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Sound pressure receiver
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US1377521A
(en)
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Serge otjlianine |
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JP3491227B2
(ja)
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静電型電気音響変換器
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US1708938A
(en)
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High-frequency sound signaling
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JP4579144B2
(ja)
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コンデンサマイクロホンユニット
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