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Piano Attachment

Description: Patent for improvements in the medium with which the piano creates notes in correlation with the striking of the strings so that the notes may be "produced alone or in concert with the bell-like tones at the will of the performer" (lines 15-17).
Date: July 9, 1901
Creator: Deutsch, John H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Dental Apparatus

Description: Patent for "a novel and convenient construction of apparatus for supplying medicine, hot air, and water for treating decayed, and abscessed teeth" (lines 12-15).
Date: July 9, 1901
Creator: Gilbert, James Madsen
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hand-Stamp.

Description: Patent for improvements in hand-stamps which “comprises a flexible bed of perculiar formation, removable type, means for securing the type in place against accidental displacement, and a bar connecting the ends of the bed when bowed and serving as a handle.” (Lines 17-22) Illustration is included.
Date: April 9, 1901
Creator: Johnson, John Calvin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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