Title:
EARPLUG
United States Patent 3505999
US Patent References:
Ear protector
- - 2719523

Earplug
- - 2803247

Drainage device
- - 3111125

Anesthetic articles
- - 3348542


Inventors:
Harvey, Susan L.
Iliff, Richard W.
Publication Date:
04/14/1970
View Patent Images:
Download PDF 3505999 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
OLD WESTPORT MEDICAL ASS INC
Primary Class:
128/865
Other Classes:
181/130
International Classes:
A61F11/10; A61F11/00; A61F11/02




<- Previous Patent (COMBINED CANINE OXYG...)   |   Next Patent (ANKLE SUPPORT) ->