Title:
Closure puncturable by polyethylene needle
United States Patent 2906423
US Patent References:
/1180665.html
- - 1180665

Container
- - 2108583

Closure for containers
- - 2334905

Rubber closure for pharmaceutical vials
- - 2649090


Inventors:
Roland, Sandhage Ellsworth
Publication Date:
09/29/1959
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Assignee:
AMERICAN CYANAMID CO
Primary Class:
215/249
International Classes:
A61D7/00; A61M3/00; B65D51/00