United States Patent 3480016
Inventors:
Costanza, John R.
Dunay, Michael
Publication Date:
11/25/1969
Other Classes:
604/372, 442/50, 604/364, 604/359, 241/1
International Classes:
A61F13/15; A61L15/62; D04H1/64; A61L15/16; A61F13/16; B32B5/22; B32B5/06