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Flue Scraper
Patent for a new and improved boiler tube scraper which will allow for easier insertion and removal, including illustrations and instructions.
Date:
April 8, 1913
Creator:
Lorenz, William Adam
System:
The Portal to Texas History
Cotton-Chopping Machine
Patent for a cotton chopping machine. Illustrations included.
Date:
August 8, 1911
Creator:
Lynn, Walter Hugh
System:
The Portal to Texas History