Colorant compositions
   
   

Colorant compositions, and intermediate chemical compositions of colorant compositions are made from 1,2,4-triazolo[4,3-a][1,3,5]triazine-3,5,7-substituted compounds.

 
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< Adjustable flexure loading apparatus for testing long span beams

> Optical filters comprising solar blind dyes and UV-transparent substrates

> Small head-mounted compass system with optical display
~ 00195