Cover image for Cardiograph, portable.
Cardiograph, portable.
Title:
Cardiograph, portable.
Author:
United States. War Department.
Publication Information:
Washington : War dept., 1944.
Physical Description:
iii, 33 pages : illustrations.
General Note:
"Nomenclature": p. 31-33.

Microfilmed for preservation
Language:
English
Format :
Book