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Laser alignment device and method using green light
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Pipe alignment apparatus and method using green light
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Gadolinium vanadate laser
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Efficient linear frequency doubled solid-state laser
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Solid-state laser with active etalon and method therefor
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Solid-state laser
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Laser-based pipe alignment device and method
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Agricultural aircraft control system using the global positioning system
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Earthmoving apparatus and method for grading land providing continuous resurveying
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Method and apparatus for determining the position of a retroreflective element
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Method and device for building a plane using a shovel excavator
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System for leveling workpieces
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Adjustable focus technique and apparatus using a moveable weak lens
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Load referenced pressure reducing valve
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Focus compensating lens for use in extreme temperatures
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Light beam deflecting apparatus including a fluid
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Three dimensional position sensing system and method
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System for leveling workpieces
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Automatic plumb and level tool with acoustic measuring capability
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Method and apparatus for controlling the blade of a motorgrader
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