2 Matching Results

Search Results

Puzzle.

Description: Patent for a wooden cube puzzle made up of many irregular shaped pieces, which can be manufactured to be hard or easy.
Date: April 14, 1908
Creator: Critchett, James C.
Partner: UNT Libraries Government Documents Department

Pianissimo Device.

Description: Patent for a pianissimo device for upright pianos, which "takes up the lost motion when the soft pedal is used by automatic means" (lines 14-16).
Date: April 14, 1908
Creator: Decker, Herman L.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen