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Ventilating-Fastener.
Patent for an improved tuft fastening device that provides ventilation through cushion tufts to make cushions cooler to the touch, including illustrations.
Date:
May 8, 1917
Creator:
Davis, Don M. & Underwood, Thomas J.
System:
The Portal to Texas History
Piano-Hammer.
Patent for a piano hammer, which has a strip of striking material that can be moved over to a new section when one section wears out, to increase the life of the hammer.
Date:
May 24, 1910
Creator:
Young, Henry E.
System:
The Portal to Texas History