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Selected: K

Köhler concentrator

Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Reexamination Certificate

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Kaleidoscope

Optical: systems and elements – Kaleidoscope
Reexamination Certificate

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Kaleidoscope

Optical: systems and elements – Kaleidoscope – Including particles loosely housed for agitation
Reexamination Certificate

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Kaleidoscope

Optical: systems and elements – Kaleidoscope
Reexamination Certificate

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Kaleidoscope

Optical: systems and elements – Kaleidoscope
Reexamination Certificate

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Kaleidoscope assembly

Optical: systems and elements – Kaleidoscope
Patent

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Kaleidoscope devices

Optical: systems and elements – Kaleidoscope
Reexamination Certificate

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Kaleidoscope for viewing multiple reflections having a specific

Optical: systems and elements – Kaleidoscope
Patent

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Kaleidoscope kit

Optical: systems and elements – Kaleidoscope – Including particles loosely housed for agitation
Patent

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Kaleidoscope structure

Optical: systems and elements – Kaleidoscope – Including particles loosely housed for agitation
Patent

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Kaleidoscope with counter-rotating object wheels

Optical: systems and elements – Kaleidoscope
Patent

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Kaleidoscope with improved objective illumination

Optical: systems and elements – Kaleidoscope – Including particles loosely housed for agitation
Patent

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Kaleidoscope, and pattern generating apparatus and pattern gener

Optical: systems and elements – Kaleidoscope
Patent

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Kaleidosphere

Optical: systems and elements – Kaleidoscope
Patent

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Kepler-type erect image viewfinder and erecting prism

Optical: systems and elements – Prism – With reflecting surface
Patent

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Keplerian finder optical system

Optical: systems and elements – Compound lens system – Telescope
Patent

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Keplerian variable magnification finder

Optical: systems and elements – Compound lens system – Variable magnification
Patent

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Keplerian variable magnification finder

Optical: systems and elements – Compound lens system – Variable magnification
Patent

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Keplerian variable magnification viewfinder

Optical: systems and elements – Lens – With variable magnification
Patent

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Keplerian variable magnification viewfinder

Optical: systems and elements – Compound lens system – Variable magnification
Patent

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