on two opposite sides of supports or substrates

Full Title

Light sources with three-dimensionally disposed light-generating elements > on two opposite sides of supports or substrates

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

LIGHTING

Subclass:

INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , , and , RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED