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Patents
Patents Assigned to Bruce R. Doyle
Patents Assigned to Bruce R. Doyle
Orbiting action device
Patent number:
4593911
Abstract:
A manual dexterity toy in which a ball is caused to orbit along elliptical trajectories within the toy for as long as possible without having the ball escape to the exterior of the toy.
Type:
Grant
Filed:
May 17, 1985
Date of Patent:
June 10, 1986
Assignee:
Bruce R. Doyle
Inventor:
Richard Cory