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US4299485A
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Spectrophotometer
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Spectrophotometer
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Spectrophotometer
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Spectrophotometer
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Microphone unit
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Microphone unit
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Microphone unit
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Spectral discharge lamp
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Electron discharge tube cooling system
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Detecting changes in body shape
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Slide switch
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AU4510979A
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Trace vapour detection
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Trace vapor detection
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Wavelength Stepping in a Dual Beam Spectrophotometer
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GB2043880A
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Noise reduction in dual beam ratio recording spectrophotometers
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GB2043821A
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Cam Mechanism
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GB2043878A
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Dark Signal Compensation in Spectrophotometers
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Ebert monochromator
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GB2043361A
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Electrical contacts for fuseholders
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GB2043030A
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Flushing container for sampling probe
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