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A method for adjusting the resonant frequency and motional electrical impedance of a vibrating diaphragm electroacoustic transducer
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Methods of and means for coating articles employing sonic energy
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Electroacoustic transducers
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Electroacoustic transducer for use at high temperatures and pressures
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Method of making an electroacoustic transducer
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Electroacoustic transducers of the mass loaded vibratile piston type
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Piezolectric transducer having spider-like frame structure
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Electroacoustic transducers of the bilaminar flexural vibrating type
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Electroacoustic transducer of the vibratile diaphragm type with controlled uniformity of performance characteristics and method for controlling uniformity
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High power,low frequency underwater transducer array
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Means for increasing the acoustic power output of underwater transducers
