Title:
Corrective mouth breather
United States Patent 1519915


Inventors:
Johnson, Walter G.
Application Number:
US60158022A
Publication Date:
12/16/1924
Filing Date:
11/17/1922
Assignee:
Johnson, Walter G.
Primary Class:
Other Classes:
602/74, 602/902
International Classes:
A61F13/12
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