Normal view MARC view ISBD view

Improvements in or relating to preparati - 0 Govt. of India, The Pate 0

Subjects--Index Terms: 140918 ASCERTAINS C DESCRIBES DEVICES FOLLOWING GRADE IMPROVEMENTS INVENTION LABORATORY LUMINESCENT MANNER MATERIAL MATERIALS NATURE PARTICULARLY PERFORMED PHOSPHOR PHOSPHORS PREPARATION RAW RELATING SPECIFICATION SULPHIDE USE-FUL ZINC

Universal Decimal Class. No.: 0