using solidified gases, e.g. carbon-dioxide snow

Introduced: September 1968

Full Title

Devices using other cold materials; Devices using cold-storage bodies > using solidified gases, e.g. carbon-dioxide snow

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

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F25D 3/122 CPC only CPC only
F25D 3/125 CPC only CPC only
F25D 3/127 CPC only CPC only
F25D 3/14 portable, i.e. adapted to be carried personally IPC+CPC Available in IPC and CPC