Toy exercise device with rotatable rings
United States Patent 3306612
US Patent References:
Toy
- - 1858145

Toy
- - 2956369

Whirling amusement device
- - 3194558


Inventors:
Rosen, Leonard B.
Publication Date:
02/28/1967
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Assignee:
Rosen, Leonard B.
Primary Class:
273/440
Other Classes:
482/44, 482/110, 446/266
International Classes:
A63B67/08