Computers - Electronics - Robots - Technology - TV's
Mar. 22 Mine Safety - This continue mining machine now being operated in U.S. coal mines incorporates several safety features, the most important of which is the methane monitor (the box with the dial) which measures the amount of gas in the mine atmosphere. The machine is also equipped with a water spray to douse any engine fire
Picture No
13213792
Media ID
46965373
Size
4466px x 5592px
(1.1MB)
Credit
(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
Usage Restrictions
Editorial Use Only - No Property or Model Releases. For any non-editorial use, please contact Mary Evans direct
Source
Keystone Pictures USA
