William B. Wetherell

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All-reflective three element objective

Patent

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Atmospheric dispersion corrector

Patent

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Integrating light mixer

Optics: measuring and testing – Photometers – Integrating spheres
Reexamination Certificate

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Polarization matching mixer

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent

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Profile ID: LFUS-PAI-P-814273

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