Title:
Construction elements
United States Patent 2983071
US Patent References:
Structural toy
- - 1433273


Inventors:
Stewart, Oliver
Publication Date:
05/09/1961
View Patent Images:
Download PDF 2983071 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Stewart, Oliver
Primary Class:
446/92
Other Classes:
403/174, 403/173
International Classes:
A63H33/10; A63H33/04
Foreign References:
GB191303646A
DK20642A
FR914352A