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Title:
Frictionless track and gliders having air bearing surfaces for demonstrating mechanical principles
United States Patent 3299535
Inventors:
Stull, John L.
Ferguson, Frank E.
Application Number:
US41011064A
Publication Date:
01/24/1967
Filing Date:
11/10/1964
Assignee:
EALING CORP
Primary Class:
Other Classes:
406/88
International Classes:
G09B23/10
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