DIFF Main Group
G21F 7/00 Shielded cells or rooms
Introduced: September 1968
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G21F 7/005 Shielded passages through walls; Locks; Transferring devices between rooms (between glove-boxes G21F7/047) since 1990 IPC+CPC Available in IPC and CPC
- G21F 7/015 Room atmosphere, temperature or pressure control devices since 1990 IPC+CPC Available in IPC and CPC
- G21F 7/02 Observation devices permitting vision but shielding the observer IPC+CPC Available in IPC and CPC
- G21F 7/04 Shielded glove-boxes (glove-boxes in general B25J21/02) +3 CPC IPC+CPC Available in IPC and CPC
- G21F 7/06 Structural combination with remotely-controlled apparatus, e.g. with manipulators +6 CPC IPC+CPC Available in IPC and CPC