04323063 is referenced by 39 patents and cites 7 patents.

A medical face mask having the central portion of the mask made of a transparent material, providing a view of the wearer's mouth.

Title
Medical face mask
Application Number
6/142034
Publication Number
4323063
Application Date
April 21, 1980
Publication Date
April 6, 1982
Inventor
Jeanne M Fisichella
3716 SW. 30th St., Terrace Apt. 41B, Gainesville, 32608
FL, US
Agent
Arthur G Yeager
IPC
A61B 19/00
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