Construction toy having a variable angle joint
United States Patent 3286391
US Patent References:
Educational device for teaching the atomic and molecular theory of chemical substances
- - 2052457
/2733547.html
- - 2733547
Molecular model construction
- - 2920400
Educational device for teaching the atomic and molecular theory of chemical substances
- - 2052457
/2733547.html
- - 2733547
Molecular model construction
- - 2920400
Inventors:
Max, Mengeringhausen
Publication Date:
11/22/1966
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Export Citation:
Assignee:
Max, Mengeringhausen
Primary Class:
Other Classes:
24/572.100, 403/1, 52/655.200, 446/126, 403/173, 446/102, 403/176
International Classes:
A63H33/10; A63H33/04
Foreign References:
| IT411791B |