Electroencephalographic apparatus
United States Patent 2712309
US Patent References:
Esophageal switch for electrocardiograph apparatus
- - 2647508


Inventors:
Offner, Franklin F.
Publication Date:
07/05/1955
View Patent Images:
Download PDF 2712309 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Offner, Franklin F.
Primary Class:
600/544
Other Classes:
200/46
International Classes:
A61B5/0476