Title:
Toy planetarium
United States Patent 3387393
Inventors:
Musser, Clair O.
Publication Date:
06/11/1968
Export Citation:
Click for automatic bibliography generation
Primary Class:
434/291
Other Classes:
446/136
International Classes:
G09B27/02; G09B27/00
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US Patent References:
3286374Planetarium
2949682Satellite orbit toys
2786680Racing games
2594678Magnetic racing amusement device
2418718Educational appliance
2226032Planetarium
1770820Astronomical clock
0749508N/A
0122954N/A
Foreign References:
CH379164A