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Composition for Removing Boiler-Scale

Description: Patent for "an extract of the plant know to botanists by the name 'Larrea Mexican,' to be used in removing boiler-scale and in preventing the reformation of the same" (lines 9-13).
Date: April 16, 1901
Creator: Pena, Benjamin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Multiple Telegraph

Description: Patent for "a simple device of this character by means of which any one of a number of instruments or translating devices at a distance may be operated over a single line-wire and by means of a single flow of electric current through said wire" (lines 10-15).
Date: May 7, 1901
Creator: Foster, Samuel T., Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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