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GB1260653A
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Improvements in or relating to optical apparatus
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GB1199633A
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Improvements in or relating to Alignment Devices
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GB1223993A
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Improvements in or relating to fluid flow devices
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GB1193501A
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Improvements in or relating to Positioning Apparatus
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Improvements in or relating to Microscope Drive Mechanisms
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GB1162151A
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Improvements in or relating to Medical Respirators
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Improvements in or relating to Microscope Slide Clips
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Improvements in or relating to Microscopes
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Improvements in or relating to Indicators for Artificial Respiration Medical Ventilators.
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GB1168786A
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Selection apparatus
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GB1043161A
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Improvements in or relating to microscope stages
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GB1012974A
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Improvements in or relating to microscopes
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GB1043162A
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Adjusting means for microscope stages
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FR1342725A
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Beam splitter device for optical instruments
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GB1029302A
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Improvements in or relating to optical instruments
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GB1034811A
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Improvements in or relating to microscopes
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GB1008368A
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Improvements in or relating to microscope objectives
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