GAMMATROL

Electrical and Electronic Apparatus and Instruments and Structural Parts and Structural Fittings Therefor-Namely, Sources of Ionizing Radiation-Namely, Radioactive Isotopes Housed in a Shielded Container which Emit Gamma Rays, X-Rays, Beta Rays or Neutrons; Monitoring Equipment-Namely, Radiation Detectors and Associated Electronic Devices, Display, Recording, Switching or Relay Devices, All Associated with the Electronic Devices and All for Ionizing Radiation; Sources, Detectors, Gauges, Readers, Alarms, Correctors and Auxiliary Electronic Devices for Testing or Measuring Levels, Densities or Compositions of Materials Using a Source of Ionizing Radiation and Control, Testing and Monitoring Apparatus for Use in Conjunction with Such Equipment; None Being for Use in Connection with the Graphic Arts