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1 result for “page 2 of 7” · 2096ms

Patent

US3425056 Warning lens having concentric lenticular elements

Cited prior art · Robert E Dawson · RE Dietz Co · United States · 1969

the lens evenly and 29d, each row divided into 24 individual elements, 75 across the beam. Page 7 2. A warning lens for collecting light from a source for receiving light