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Toy aeroplane
United States Patent 1497555
Inventors:
Hannah, Donaldson Charles
John, Whittle
Publication Date:
06/10/1924
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Download PDF 1497555
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Assignee:
Hannah, Donaldson Charles
John, Whittle
Primary Class:
472/8
Other Classes:
446/176, 446/30
International Classes:
A63H27/24