Title:
Dosage regulator and control wedge for hypodermic syringes
United States Patent 2216354
Inventors:
Pletcher, Delmer I.
Publication Date:
10/01/1940
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Assignee:
Pletcher, Delmer I.
Primary Class:
Other Classes:
222/309, 74/531
International Classes:
A61M5/315