GB190521091A - A New or Improved Composition of Matter to be used for Filling the Grooves of the Metallic Plates or Frames of Stair-treads.
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A New or Improved Composition of Matter to be used for Filling the Grooves of the Metallic Plates or Frames of Stair-treads.
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William Stickney Lamson
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21,091. Lamson, W. S. Oct. 20, 1904, [date applied for under Patents Act, 1901]. Plastic compositions.-A composition consisting of magnesium-chloride solution, calcined magnesite, and carborundum, with or without sand, is used for filling the grooves of the metallic plates or frames of stair-treads.
GB190521091D1904-10-201905-10-17A New or Improved Composition of Matter to be used for Filling the Grooves of the Metallic Plates or Frames of Stair-treads.
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