72252257
Aug 12, 1966
Feb 6, 1968
RADIATION DETECTORS; SPECTROMETERS; THERMOLUMINESCENT DOSIMETERS; SCINTILLATION PHOSPHORS; SYNTHETIC OPTICAL CRYSTAL LENSES; WINDOWS AND PRISMS FOR USE IN SCIENTIFIC APPLIANCES; PHOTOCONDUCTORS; PHOTO-VOLTAIC SOLAR CELLS; AND ELECTRO-OPTIC CRYSTALS
Fancy Goods