4. Optics: measuring and testing
  5. Inspection of flaws or impurities
  6. Having predetermined light transmission regions

Benjamin J. Pernick

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Aircraft ice detecting system

Aeronautics and astronautics – Aircraft structure – Ice prevention
Patent

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Alignment fixture for an optical instrument

Supports – Pipe or cable – Extending through plate
Patent

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Alignment fixture for unobstructed pivot point

Supports – Stand – To hold a particular article
Patent

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Automatic laser beam expander-pinhole alignment system

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

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Fourier transform signal processor

Boots – shoes – and leggings
Patent

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Profile ID: LFUS-PAI-P-234059

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