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Device and method for an optical tunable polarization...

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate

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Device, method, and system of display for controlled viewing

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate

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Diamond-like carbon film and method for qualitatively...

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate

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Diffuse reflectors

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Patent

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Disappearing and appearing image of an object

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate

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Door viewer including inner tube encasing object lenses and ocul

Optical: systems and elements – Extended spacing structure for optical elements – Wide angle
Patent

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Dual polarized filters to eliminate canopy reflections

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Patent

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