4. Measuring and testing
  5. Blower, pump, and hydraulic equipment

Donald A. Ferguson

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Composite power amplifier with redundancy

Amplifiers – With plural amplifier channels – Redundant amplifier circuits
Patent

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Temperature sensing termination

Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Reexamination Certificate

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Tuned reactance cavity electrical termination

Wave transmission lines and networks – Dissipating terminations for long lines – Fluid-cooling
Reexamination Certificate

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Valve testing system utilizing an artificial atmosphere

Measuring and testing – Blower – pump – and hydraulic equipment
Patent

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