Invention Grant
- Patent Title: Educational toy with interchangeable spheres
- Patent Title (中): 具有可互换球体的教育玩具
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Application No.: US13004669Application Date: 2011-01-11
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Publication No.: US08496483B1Publication Date: 2013-07-30
- Inventor: George M. Walters
- Applicant: George M. Walters
- Agent Michael I. Kroll
- Main IPC: G09B1/00
- IPC: G09B1/00

Abstract:
An educational toy with interchangeable spheres for teaching the user to produce words, progressions, mathematics, patterns and other educational arrangements and sequences comprising a shaft with a permanently affixed stationary sphere on one end and a removable threaded sphere on the other. A plurality of educational balls having various graphics and horizontal throughbores that are slid onto the shaft in a user selected order when the threaded sphere is removed and retained thereon when it is replaced.
Information query