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Special Radiation Hazard Warning Sign from ORNL (ca. 1960s) |
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| This version of the radiation sign employing concentric circles was used at Oak Ridge National Laboratory to identify "special" hazards. |
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Last updated: 07/25/07 |
|
Special Radiation Hazard Warning Sign from ORNL (ca. 1960s) |
|
| This version of the radiation sign employing concentric circles was used at Oak Ridge National Laboratory to identify "special" hazards. |
|
Last updated: 07/25/07 |