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Active/passive signature enhancer (APSE)

Optical: systems and elements – Signal reflector – 3-corner retroreflective
Patent

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All-optical flip-flop

Optical: systems and elements – Signal reflector – Including a curved refracting surface
Patent

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Angle selective reflection sheet

Optical: systems and elements – Signal reflector – Including a curved refracting surface
Reexamination Certificate

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Anti-vibration optical device

Optical: systems and elements – Signal reflector – Discrete reflecting elements formed as a unitary mass
Patent

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Apparatus and method of making reflex molds

Optical: systems and elements – Signal reflector – Including a curved refracting surface
Patent

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Apparatus for displaying a suspended image

Optical: systems and elements – Signal reflector – 3-corner retroreflective
Reexamination Certificate

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Arrangement for retroreflection of a ray using triple prisms

Optical: systems and elements – Signal reflector – 3-corner retroreflective
Patent

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Arrangement of corner reflectors for a nearly...

Optical: systems and elements – Signal reflector – 3-corner retroreflective
Reexamination Certificate

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Article exhibiting dry and wet retroreflectivity

Optical: systems and elements – Signal reflector – Including a curved refracting surface
Reexamination Certificate

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Asymmetric cube corner article

Optical: systems and elements – Signal reflector – 3-corner retroreflective
Patent

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