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Apparatus for tracking moving workpiece by a laser beam
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System for decoding bar code
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Soft power supply for pulsed laser
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Lightning rod mirror protection
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GB1494405A
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Tuning apparatus for an optical oscillator
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Optical scan pattern generator for code reading systems
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Laser having improved windows
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Tuning apparatus for an optical oscillator
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Apparatus for detecting the position of a moving or modulated light beam
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Multiple dye stream laser
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Dye laser having non-colinear optical pumping means
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Improved tuning apparatus for a dye laser
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Gas laser having an integral optical resonator with external stabilizing means
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Means for regulating vapor pressure in a metal-vapor laser
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Gas laser having improved multiple-part resonator adjustment
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Metal-vapor laser with improved vapor condensing means
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Gaseous laser with improved means for supporting the discharge confining bore tube
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Gaseous laser with cathode forming optical resonator support and plasma tube envelope
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Laser having means for defogging the optical cavity thereof
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Method for scanning mask forming holes with a laser beam
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