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GB391391A
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Improvements in the manufacture of glass tubes
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GB379216A
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A new method of avoiding the formation of bubbles or striae on the surface of molten glass when in contact with hot metal walls
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GB349315A
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Process for the manufacture of glass tubes and automatic apparatus embodying the same
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GB199726A
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Improvements in or relating to the manufacture of small electrical appliances of glass
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GB197693A
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Improvements in or relating to incandescent electric lamps and other similar apparatus
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GB211879A
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Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith
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GB187991A
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Improvements in or relating to incandescent electric lamps and other similar apparatus
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