using a gas cushion or by changing gas pressure, e.g. by applying vacuum

Full Title

Re-forming shaped glass > Re-forming glass sheets > by bending > using a gas cushion or by changing gas pressure, e.g. by applying vacuum

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

GLASS; MINERAL OR SLAG WOOL

Subclass:

MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL