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GB191204431A
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Improvements in Arc Lamps for Optical Lanterns and the like purposes.
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GB190811097A
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Improvements in Weighing Machines or Apparatus for use in Schools and the like.
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GB190403490A
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Improved Means or Apparatus for Measuring Quantities of Highly Volatile Liquids.
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GB190212006A
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Improvements in or relating to Lanterns for Lectures, Demonstrations and Laboratory Work
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GB190123038A
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Improvements in or in connection with Electric Arc Lamps
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GB190004975A
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Improvements in Photographers' Dark Room Lanterns.
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GB189914102A
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Improvements in or in connection with Cameras and Camera Tripods.
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GB189715852A
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Improvements in or connected with Apparatus for the Inhalation of Oxygen.
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GB189612959A
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Improvements in Arc Lamps, specially applicable for Lantern Purposes.
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GB189520626A
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Improvements in Electric Arc Lamps, specially applicable for Lantern Purposes.
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GB189401035A
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Improvements in the Construction of Boxes for the Transport of Compressed Gas Cylinders, or other Articles liable to suffer from Concussion.
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GB189316373A
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Improvements in or in connection with Cameras.
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