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SU1614132A1
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Optronic device for playback of video information
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SU1099306A1
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Catadioptric lens
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SU986737A1
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Apparatus for tracing working of aspherical surfaces
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SU996174A2
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Apparatus for profiling of aspheric surfaces
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US4390249A
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Galilean-type telescope system
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BG44503A1
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Objective for recording of information
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SU781737A1
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Wide-angle eyepiece
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SU679915A1
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Eyepiece
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SU654926A1
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Ocular
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SU636577A1
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Wide-angle eye-piece
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SU672596A1
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High-power reproduction objective
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SU585465A1
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Eyepiece
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SU572741A1
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Wide-angle eyepiece
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SU584275A1
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Wide-angle eyepiece
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SU574691A1
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Ocular eyepiece
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BG44504A1
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Objective for fourrier analysis
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