Title:
Protective device for needles of hypodermic syringes
United States Patent 2854976

Inventors:
Esnard, Heydrich Sergio
Publication Date:
10/07/1958
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Assignee:
Esnard, Heydrich Sergio
Primary Class:
604/192
Other Classes:
604/263
International Classes:
A61M5/32
Foreign References:
IT445963B