Title:
Method of and apparatus for inducing and sustaining sleep
United States Patent 2304095

Inventors:
Hull, Maury I.
Publication Date:
12/08/1942
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Assignee:
Hull, Maury I.
Primary Class:
600/28
Other Classes:
331/106, 381/73.100, 331/171, 340/307, 340/388.700, 340/390.100
International Classes:
A61M21/00