Chance device
United States Patent 2507570
US Patent References:
/0514200.html
- - 0514200

/0676807.html
- - 0676807

/1275805.html
- - 1275805

Device for quickly finding harmonious color combinations
- - 1483529


Inventors:
Peter, Jensen Carl Valdemar
Publication Date:
05/16/1950
View Patent Images:
Assignee:
Peter, Jensen Carl Valdemar
Primary Class:
Other Classes:
273/142R, 7/151
International Classes:
A63F5/04; A63F9/00