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Interval Timer and the development of X-rays

by Sean Ruck, Contributing Editor | December 15, 2015
Interval Timer
From the November 2015 issue of HealthCare Business News magazine

Each month, we visit Dr. Blaufox’s Museum of Historical Medical Artifacts to take a look back at the medical equipment that cleared the way for what patients encounter in doctors’ offices and operating rooms of today. Some equipment may be recognizable, while other featured inventions have since become obsolete or have had their usefulness discredited.

The picture and description appear courtesy of Dr. M. Donald Blaufox, M.D., Ph.D, from his Web site: www.mohma.org.

Category: Radiology
Estimated Date: 1925
Manufacturer: Victor X-ray
Description: This timer was used for developing X-rays. It is a circular clock with a 3.5” diameter face on a 1.5” by 2” trapezoidal base with an anodized surface. The face is calibrated from 15 seconds up to 10 minutes and an inner scale calibrated in 10 minute intervals up to 120, or two hours. On top is a 1.5” by 2” diameter bell, which is wound with the clock by a loop on top

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