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BE1003572A5
(fr)
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Detecteur de grains perdus pour moissonneuses.
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US4607186A
(en)
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Ultrasonic transducer with a piezoelectric element
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FR2529427A1
(fr)
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Transducteur electro-acoustique a grande elongation
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US5955824A
(en)
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Reduced size electro-acoustic transducer with improved terminal
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BE538293A
(Direct)
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WO2000013392A2
(en)
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Piezoelectric vibrational and acoustic alert device
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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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FR2521382A2
(fr)
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Transducteur acoustique
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US8179024B2
(en)
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Piezoelectric transducer device
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US3550071A
(en)
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Transducer system
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FI74183B
(fi)
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Piezoelektrisk omvandlare.
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JP7351792B2
(ja)
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収音装置
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US1356156A
(en)
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Telephonic receiver
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FR2565727A1
(fr)
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Installation electronique de signal-avertisseur notamment pour vehicules automobiles.
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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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BE438308A
(Direct)
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CN109218933B
(zh)
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微型发声器件
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US1310011A
(en)
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John gardner |
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BE408767A
(Direct)
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GB147947A
(en)
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Receiving device for submarine sound signals with a receiving member abutting on the water and a detecting device
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BE452029A
(Direct)
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CH598587A5
(en)
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Ultrasonic pressure sensor with ceramic transmission transducer
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BE412258A
(Direct)
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