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Slide Rule for Computing Radioactivity Decay Factors Defactor Calculator Herson
Slide Rule for Computing Radioactivity Decay Factors Defactor Calculator Herson

Slide Rule for Computing Radioactivity Decay Factors Defactor Calculator Herson

$ 21.12

Availability: 41 in stock
  • Time Period Manufactured: 1930-Now
  • Condition: Used
  • Country/Region of Manufacture: United States
  • Modified Item: No

    Description

    Slide Rule for Computing Radioactivity Decay Factors Defactor Calculator Herson.
    A specialized slide rule for atomic work by JL Herson of Washington, DC, patent pending.