LandOfFree - US Patents - Listing for Geometrical instruments,Straight-line light ray type,Celestial

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Shadowless sundial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Skyline imaging system for solar access determination

Geometrical instruments – Straight-line light ray type – Celestial

Reexamination Certificate

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Solar compass

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Solar compass and time indicator device

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Space-time tracker

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sun and star time dial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sun clock

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sun compass

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sun sensors using multi-pinhole overlays

Geometrical instruments – Straight-line light ray type – Celestial

Reexamination Certificate

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Sun tracking device

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Reexamination Certificate

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Reexamination Certificate

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Sundial

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial apparatus

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial arrangement

Geometrical instruments – Straight-line light ray type – Celestial

Patent

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Sundial with dome and grid of light

Geometrical instruments – Straight-line light ray type – Celestial

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

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