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RE: trefoil origins
According to Paul Frame (ORAU) - "The three-bladed radiation warning symbol,
as we currently know it, was "doodled" out at the University of California
Radiation Laboratory in Berkeley sometime in 1946 by a small group of
people."
See http://www.orau.org/ptp/articlesstories/radwarnsymbstory.htm
Richard F. Orthen, CHMM
Senior Project Manager
Civil & Environmental Consultants, Inc.
Four Triangle Lane, Suite 200
Export, PA 15632-9255
724/327-5200, ext. 231
www.cecinc.com
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- References:
- trefoil origins
- From: "Krzesniak, Michael F" <krzesniak@atd.crane.navy.mil>