United States Patent 3353536
Inventors:
Bird, Forrest M.
Pohndorf, Henry L.
Publication Date:
11/21/1967
Assignee:
Bird, Forrest M.
Pohndorf, Henry L.
Other Classes:
261/DIG.065, 239/338, 128/200.210, 422/266
International Classes:
A61M11/06; A61M16/00