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Improvements in and relating to electro-mechanical translating devices
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Frequency selection unit
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Piezo-Electric Transformer
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Piezo-electric devices for propagating alternating electric fields
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Dc-ac conversion method and apparatus
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1952-05-14
Method of making an electromechanically responsive ceramic body
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УСТРОЙСТВО дл ВОЗБУЖДЕНИЯ ПЬЕЗОВИБРАТОРОВ
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Устройство для поляризации пьезокерамических
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Method of polarizing a ceramic transducer
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1963-12-18
Improvements in or relating to transistor amplifiers
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Устройство дл намагничивани изделий
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Method of improving the polarization of piezoelectric materials
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Compounds of lead germanium and oxygen and the use of such compounds in electrical devices