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Rotary Pneumatic Toy. (open access)

Rotary Pneumatic Toy.

Patent for improvements in rotary pneumatic toys, "which can be carried by a child and caused to rotate by the action of the air when the toy is carried rapidly or if the air is violently circulated" (lines 11-15) including illustrations.
Date: November 17, 1986
Creator: Laube, Godfried
System: The Portal to Texas History