MARTIN, Chief Justice.
Appeal from an award of priority in an interference proceeding.
The invention relates to so-called ready to lay or prepared roofing, constructed of a sheet or body layer composed of mixed asbestos fiber and cattle hair impregnated with an asphaltic waterproofing compound, a layer of adhesive asphalt covering one side of the sheet, together with a layer of grit adhering thereto. The asbestos possesses the quality of resisting fire and...
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