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GB614637A
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Improvements in and relating to sliders and slideways
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GB615222A
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Improvements in and relating to vernier or other graduated scales
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GB605843A
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Improvements in and relating to sine-bars and the like
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GB531568A
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Improvements in and relating to indicating comparators
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GB513346A
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Improvements in and relating to bearings for members having rotatory axes of precision
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GB394818A
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Improvements in and connected with optical projection apparatus
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GB348411A
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Improvements in and relating to microscope condensers
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GB315559A
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Improvements in knife-edge bearings
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GB293944A
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Improvements in and relating to devices for hanging pictures and like articles on walls
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GB271993A
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Improvements in and relating to microscope objective changers
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GB178978A
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Improvements in and relating to spherometers
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GB137637A
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Improvements in or relating to methods of or means for measuring or comparing the light scattered by particles in illuminated media
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