Title:
EARPLUG
United States Patent 3505999


Inventors:
Harvey, Susan L.
Iliff, Richard W.
Application Number:
US3505999DA
Publication Date:
04/14/1970
Filing Date:
08/25/1967
Assignee:
OLD WESTPORT MEDICAL ASS INC
Primary Class:
Other Classes:
181/130
International Classes:
A61F11/10; (IPC1-7): A61F11/02
View Patent Images:
US Patent References:
3348542Anesthetic articles1967-10-24
3111125Drainage device1963-11-19
2803247Earplug1957-08-20
2719523Ear protector1955-10-04