GB191410630A
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Improvements in Gas Heated Annealing Furnaces.
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GB191328097A
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Improvements in Salt Bath Furnaces.
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GB191324793A
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Improvements in Check Tills.
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GB191324009A
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Improvements in Check Tills.
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GB191323413A
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Improvements in Check Tills.
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GB191322167A
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An Improved Melt or Compound for use in the Hardening or Tempering of Steel.
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GB191306847A
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Improvements in Crucible and similar Furnaces.
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GB191215628A
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Improvements in Crucibles used in Metallurgical and similar Furnaces.
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GB191123552A
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Improvements in Guards for Milling Machines.
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GB191123066A
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Improvements in Furnaces for Heating Tools and other Articles.
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GB190904861A
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Improvements in Furnaces for Hardening Steel Cutters and other Tools or Articles.
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GB190722522A
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Improvements in Furnaces for Hardening High Speed Steel.
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GB190525004A
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Improvements in the Process of Hardening Carbon Steel.
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GB190511268A
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Improvements in the Process of Hardening High Speed Steel.
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GB190412816A
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Improved Melt or Bath for Hardening Steel.
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GB190412817A
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Improvements in the Process of Hardening High Speed Tool Steel.
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GB190326703A
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Improvements in Apparatus or Furnaces for Hardening Steel Cutters or other Tools or Articles.
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GB189904063A
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Improvements in Chasing Tools.
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