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JPS5926704A
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Multilayered film reflecting mirror
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JPS5919921A
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Multibeam acoustooptic modulator
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JPS5919922A
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Acoustooptic modulating element
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JPS5919923A
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Multibeam acoustooptic modulator
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JPS5919920A
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Multibeam acoustooptic modulator
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JPS5916308A
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Permanent magnet
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JPS5915938A
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Substrate for photomask blank applied with marking
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JPS5856479A
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Substrate for electrode
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JPS5830131A
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Detection of etching end point
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JPS5815666A
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Processing method
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JPS57210676A
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Substrate for electrode
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JPS57207336A
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Cleaning jig
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JPS57185014A
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Optical isolator
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JPS57185013A
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Optical isolator
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JPS57177585A
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Manufacture of laser oscillator
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JPS57177584A
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Laser oscillator
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JPS57175201A
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Length measuring original device and blank for said device
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JPS57151945A
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Photomask blank and its manufacture
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JPS57147634A
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Photomask blank
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JPS57147633A
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Plate for photomask
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