General Electric X-Ray Corporation, Coolidge, William David, 1873-1975 · Schenectady, N.Y., General Electric Comapny · leaf 1
RONTGEN ! THE LLOYD E. HAWESCOLLECTION IN THE; HISTORY OF RADIOLOGY L_- ^ . — <?^ Harvard Medical Libraryin the Francis A. CountwayLibrary of Medicine -Boston VEPJTATE^A PERMEDIClKAMQUyERAAiL/S p I COOLIDGE !X^RAYTUBE
Cathode ray tubes · Vacuum-tubes · Cathode Ray Tube · X-rays
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
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