LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT (gas storage vessels, gas-holders Fulltext... Hierarchy... Expanded...F17; decantation and vaporisation of liquefied, or solidified gases Fulltext... Hierarchy... Expanded...F17C; refrigeration machines, plants, or systems Fulltext... Hierarchy... Expanded...F25B) |