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Adjustable Pilot. (open access)

Adjustable Pilot.

Patent for Improvements in Adjustable Pilot for locomotives
Date: November 11, 1913
Creator: Sledge, John M.
System: The Portal to Texas History
Improvement in Harmony Attachments for Piano-Fortes. (open access)

Improvement in Harmony Attachments for Piano-Fortes.

Patent for, "an attachment for piano-fortes, whereby the musician may play the melody upon an instrument like the violin with his hands in the usual manner, and the accompaniment or harmony by operating the attachment with his feet."
Date: November 11, 1879
Creator: Radinsky, Gustav A.
System: The Portal to Texas History