4. Communications: electrical
  5. Audible indication
  6. Ultrasonic pest control

Jacob Neuhof

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Concave diaphragm for electro-acoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Control circuit for electromagnetic transducer

Oscillators – Relaxation oscillators
Patent

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Programmable electronic siren

Communications: electrical – Audible indication – Ultrasonic pest control
Patent

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Snap-on housing adapted for panel mounting of transducer

Communications: electrical – Audible indication – Ultrasonic pest control
Patent

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Profile ID: LFUS-PAI-P-299650

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