- Colourmark
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ColourMark is a floating navigation marker designed by Don Lang Design to fit on a steel or timber pile. The intent is to clearly mark the piles to prevent impact.[1] The first 12 ColourMarks were installed in Portsmouth Naval Harbour by the Ministry of Defence in 1997.
References
- ^ Don Lang Design. "Innovations". http://www.donlangdesign.com/innovations.htm. Retrieved 23 March 2011.
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