4. Optics: measuring and testing
  5. Angle measuring or angular axial alignment
  6. With photodetection remote from measured angle

James E. Pearson

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Adaptive laser output coupler

Coherent light generators – Particular beam control device – Nonlinear device
Patent

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Adaptive optical system having automatic feedback aperture contr

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent

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Bi-directional air flow damper having uni-directional...

Valves and valve actuation – Mechanical movement actuator – Cam
Reexamination Certificate

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Butterfly valve

Fluid handling – Systems – Multi-way valve unit
Patent

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Butterfly valve assembly

Valves and valve actuation – Valve – Materials
Patent

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Profile ID: LFUS-PAI-P-976855

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