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Contact method to allow benign failure in ceramic capacitor having self-clearing feature
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Laser device and method
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Laser device and method
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Method and means for recording and reproducing variations in light.
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Record of light, sound, and analogous phenomena and process and apparatus for producing the same.
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Record of pulsations of sound and analogous phenomena and process and apparatus for producing the same.
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Means for producing, controlling, and utilizing electric currents.
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Apparatus for making sound-records.
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Metallic railway cross-tie and rail-brace.
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Recording and reproduction of pulsations or variations in sounds and other phenomena.
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