CLOSURE MEANS FOR ARTIFICIAL BODY OPENINGS
United States Patent 3447533

Inventors:
Spicer, Richard J.
Publication Date:
06/03/1969
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Assignee:
Richard, Spicer J.
Primary Class:
600/32
Other Classes:
215/358
International Classes:
A61F2/00; A61F5/445; A61F5/44; A61B19/00; B65D39/12
US Patent References:
2824558Ear plug
3098575Vacuum seal container cap
Foreign References:
FR1082007A
DE24271C




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