Title:
Apparatus for measuring breath volume
United States Patent 3319624


Inventors:
Arp, Leon J.
Griffith, Ronald J.
Application Number:
US33777864A
Publication Date:
05/16/1967
Filing Date:
01/15/1964
Assignee:
Univ, Iowa Res Found
Primary Class:
International Classes:
A61B5/091
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US Patent References:
2999495Spirometer recording device1961-09-12
0327403N/A1885-09-29