Atomic model machine
United States Patent 2601729
US Patent References:
/0374409.html
- - 0374409
/1290664.html
- - 1290664
Planetarium
- - 1811825
Educational device for teaching the atomic and molecular theory of chemical substances
- - 2052457
Astronomical toy
- - 2204952
/0374409.html
- - 0374409
/1290664.html
- - 1290664
Planetarium
- - 1811825
Educational device for teaching the atomic and molecular theory of chemical substances
- - 2052457
Astronomical toy
- - 2204952
Inventors:
Bennett, Underwood John
Publication Date:
07/01/1952
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Assignee:
Bennett, Underwood John
Primary Class:
International Classes:
G09B23/26; G09B23/00