Title:
TONE DOWNER
United States Patent 3424152
US Patent References:
Swimming appliance
- - 1383036
Nose filter
- - 2433565
Device to promote nasal breathing and prevent snoring
- - 2672138
Breathing attachment for swimmers
- - 2693799
/1124472.html
- - 1124472
Swimming appliance
- - 1383036
Nose filter
- - 2433565
Device to promote nasal breathing and prevent snoring
- - 2672138
Breathing attachment for swimmers
- - 2693799
/1124472.html
- - 1124472
Inventors:
Kuhlman, Irene Dorsey
Publication Date:
01/28/1969
View Patent Images:
Export Citation:
Assignee:
Kuhlman, Irene Dorsey
Primary Class:
Other Classes:
128/858
International Classes:
A61F5/56; A61F13/00; A61F5/56; A61L15/00