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Fog penetrating light

  • US 3,192,438 A
  • Filed: 08/13/1962
  • Issued: 06/29/1965
  • Est. Priority Date: 08/13/1962
  • Status: Expired due to Term
First Claim
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1. THE METHOD OF PENETRATING FOG WITH A LIGHT BEAM WHICH COMPRISES DIRECTING A LIGHT BEAM THROUGH A FOGGY ATMOSPHERE AND REDUCING THE INTENSITY OF THE BEAM TO LESS THAN ONE-HALF ITS NORMAL INTENSITY DURING APPROXIMATELY ONE-FOURTH OF EACH OF A SERIES OF CYCLES VARYING IN LENGTH FROM ABOUT .6 SECOND TO ABOUT 2.2 SECONDS.

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