4. Music
  5. Accessories
  6. Tuning devices

Boris F. Grib

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Composite tuning fork and method of making same

Music – Accessories – Tuning devices
Patent

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Drive regulator utilizing variable pulse width signal

Oscillators – Solid state active element oscillator – Transistors
Patent

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Motion amplitude regulator with breaking pulse regulation

Oscillators – Solid state active element oscillator – Transistors
Patent

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Voltage comparison circuits for motion amplitude regulators or t

Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent

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Profile ID: LFUS-PAI-P-285293

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