Spring-actuated medical syringe
United States Patent 2722215
US Patent References:
/0159192.html
- - 0159192

/0187031.html
- - 0187031

Hypodermic syringe
- - 1845036


Inventors:
Stig-ake, Dahlgren
Publication Date:
11/01/1955
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Assignee:
Stig-ake, Dahlgren
Primary Class:
604/157
International Classes:
A61M5/32