Title:
Gravity operated reversing whirling toy
United States Patent 2773328


Inventors:
Alexander, Fraenkel
Auguste, Rietsch
Application Number:
US33810853A
Publication Date:
12/11/1956
Filing Date:
02/20/1953
Assignee:
Alexander, Fraenkel
Auguste, Rietsch
Primary Class:
International Classes:
A63H1/30
View Patent Images:
US Patent References:
2517849Sparking yo-yo1950-08-08
1529179Mechanical toy1925-03-10
0368499N/A1887-08-16
0207527N/A1878-08-27
Foreign References:
FR764546A1934-05-23