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Lubricator
Patent for a lubricator used for lubricating graphite that is utilized in air brake systems. Illustrations included.
Date:
October 5, 1909
Creator:
Turner, William Orris
System:
The Portal to Texas History
Process of Producing Briquets
Patent for a process of producing briquets.
Date:
April 5, 1904
Creator:
Davidson, John Milne
System:
The Portal to Texas History