4. Optical: systems and elements
  5. Signal reflector

William O. Hubbs

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Displacement process for hollow surveying retroreflector

Optical: systems and elements – Signal reflector
Reexamination Certificate

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Marine engine gravity drain system

Marine propulsion – Means for accomodating or moving engine fluids – Cooling for engine
Reexamination Certificate

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Mask overlay for infrared target assembly

Optical: systems and elements – Having significant infrared or ultraviolet property – Lens – lens system or component
Reexamination Certificate

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Retro-reflective photogrammetric target

Optical: systems and elements – Signal reflector
Patent

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Spherical retro-reflector mount negative

Optical: systems and elements – Lens – With support
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1031455

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