CPC Subgroup
F17C 5/02 for filling with liquefied gases
Full Title
Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures (adding propellants to aerosol containers B65B31/00) > for filling with liquefied gases
1 direct subcode
Child Classifications
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- F17C 5/04 requiring the use of refrigeration, e.g. filling with helium or hydrogen