27323738 us patent 3 899 144 powder contrail generation
DESCRIPTION
US Patent 3,899,144: Powder Contrail GenerationPatent granted Aug. 12, 1975Abstract:Light scattering pigment powder particles, surface treated to minimize interparticle cohesive forces, are dispensed from a jet mill deagglomerator as separate single particles to produce a powder contrail having maximum visibility or radiation scattering ability for a given material.TRANSCRIPT
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