Title:
Toy construction sets
United States Patent 2846809
US Patent References:
Educational device for teaching the atomic and molecular theory of chemical substances
- - 2052457
Mechanical toy
- - 2169682
Toy construction block
- - 2208049
Atomic model machine
- - 2601729
Mixing bowl holder
- - 2665872
Educational device for teaching the atomic and molecular theory of chemical substances
- - 2052457
Mechanical toy
- - 2169682
Toy construction block
- - 2208049
Atomic model machine
- - 2601729
Mixing bowl holder
- - 2665872
Inventors:
Majewski, Eugene J.
Publication Date:
08/12/1958
View Patent Images:
Export Citation:
Assignee:
Majewski, Eugene J.
Primary Class:
Other Classes:
434/278, 52/655.200, 446/97
International Classes:
A63H33/10; A63H33/04
US Patent References:
| 2690094 | Warning reflector for vehicles |
Foreign References:
| DE103436C | ||||
| GB191302593A | ||||
| NL46021C |