Maintaining vacuum, e.g. by using getters

Full Title

Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors > Preventing corrosion; Protecting against dirt or contamination > Maintaining vacuum, e.g. by using getters

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

HEATING; RANGES; VENTILATING

Subclass:

SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS