United States Patent 3180335
Inventors:
Duncan, Robert C.
Baker, Norman L.
Publication Date:
04/27/1965
Assignee:
PROCTER & GAMBLE
Other Classes:
604/378, 604/372, 428/40.100, 604/370, 604/366
International Classes:
A61F13/15; A61L15/62; B29C65/00; B32B27/00; A61F13/56; B29C65/48; A61L15/16