4. Photocopying
  5. Contact printing
  6. Light boxes

Allen K. Lo

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Counterfeit-proof labels having an optically concealed,...

Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate

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Filmless method and apparatus for producing 3-D photographs

Photocopying – Contact printing – Light boxes
Patent

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Multiple adaptive filter active noise canceller

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Non-integer sample delay active noise canceller

Communications – electrical: acoustic wave systems and devices – Receiver circuitry
Patent

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Signal processing incorporating signal, tracking, estimation, an

Boots – shoes – and leggings
Patent

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Profile ID: LFUS-PAI-P-658171

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