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Method and apparatus for measuring deviations from flatness
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Radiation shielding door
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Joint of preformed concrete elements
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Image display system
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Multiple dimension laser gauge
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EP0038151A1
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Remote object position and orientation locator
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Remote object position and orientation locator
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Locator for source of electromagnetic radiation having unknown structure or orientation
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Remote object position and orientation locater
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Method and apparatus for tracking objects
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CA1124369A
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Method and apparatus for tracking objects
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Remote object position locater
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Optical system having diverting means
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Variable magnification optical system
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Symmetrical optical lens system
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Automatic molding apparatus and mold-making machine therein
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Precast floor panel
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Helical building
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Parallel rule protractor
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Shaft position indicator
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