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Method for ascertaining the nature of subterranean strata.
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Method of locating subterranean strata.
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Interference Method for Ascertaining the Presence of Minerals in the Earth or the Underground Water Level.
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A Method of Systematically Exploring Large Parts of the Interior of the Earth.
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A Method of Indicating the Presence and Determining the Position of Veins of Metallic Ore or Subterranean Water Levels.
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Truss for umbilical hernia.
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Improvements in the Manufacture of Moulded Elastic Goods.
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Improvements in Umbilical Pads.
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Hernia-truss.
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New or Improved Hernia Truss.
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