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Cleansing method

  • US 2,600,221 A
  • Filed: 03/28/1950
  • Issued: 06/10/1952
  • Est. Priority Date: 03/28/1950
  • Status: Expired due to Term
First Claim
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1. THE METHOD OF EXAMINING A SURFACE FOR VISUALLY UNDETECTABLE ORGANIC CONTAMINATION THAT INCLUDES THE STEPS OF TREATING THE SURFACE WITH AN EXCESS OF CHEMICAL SOLUTION THAT IS SELECTIVELY SORBED BY THE ORGANIC CONTAMINATION AND RINSING THE SURFACE TO REMOVE THE EXCESS SOLUTION NOT SORBED TO CAUSE SAID CONTAMINATION TO BECOME VISUALLY EVIDENT AND DISTINCT FROM PORTIONS OF THE SURFACE NOT SO CONTAMINATED WHEN EXPOSED TO AN APPROPRIATE LIGHT BAND.

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