4. Telephonic communications
  5. Substation or terminal circuitry
  6. For loudspeaking terminal

Michael Walker

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Adaptive noise level estimator

Electrical audio signal processing systems and devices – Noise or distortion suppression
Reexamination Certificate

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Circuit arrangement for controlling the volume range of a voice

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Patent

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Circuit for producing the operating voltages and the horizontal-

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent

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Compressor

Electrical audio signal processing systems and devices – Including amplitude or volume control – With amplitude compression/expansion
Patent

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Dispensing apparatus for viscous liquids

Dispensing – Automatic control – Of dispensers with fluid pressure discharge assistance
Reexamination Certificate

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Profile ID: LFUS-PAI-P-280150

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