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Beta irradiation method and means

  • US 2,559,793 A
  • Filed: 01/27/1949
  • Issued: 07/10/1951
  • Est. Priority Date: 01/27/1949
  • Status: Expired due to Term
First Claim
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1. AN OPHTHALMIC APPLICATOR WHICH HAS RADIOACTIVE MATERIAL WHICH CONSISTS SUBSTANTIALLY WHOLLY OF RADIUM D AND RADIUM E AND RADIUM F, SAID APPLICATOR HAVING FILTER MEANS WHICH ARE PERMEABLE SUBSTANTIALLY ONLY TO BETA RAYS EMITTED AT THE ENERGY LEVEL OF THE BETA RAYS EMITTED BY RADIUM E.

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