Title:
Electroencephalographic apparatus
United States Patent 2712309
Inventors:
Offner, Franklin F.
Publication Date:
07/05/1955
Export Citation:
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Assignee:
Offner, Franklin F.
Primary Class:
600/544
Other Classes:
200/46
International Classes:
A61B5/0478
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US Patent References:
2647508Esophageal switch for electrocardiograph apparatus