4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

David Danielson

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Actuation system for a controllable pitch propeller

Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Reexamination Certificate

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Drift correction for fiberoptic pressure sensors

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Dynamic brake with backlash control for peristaltic pump

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Reexamination Certificate

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Electronic propeller control system

Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Patent

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Table saw

Machines not elsewhere specified – Material working – abrading – or founding machinery – Cutting
Design Patent

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Profile ID: LFUS-PAI-P-1199877

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