Envelopes; Vessels

Introduced: September 1968

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Details > Envelopes; Vessels

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

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H01K 1/30 incorporating lenses IPC+CPC Available in IPC and CPC
H01K 1/32 provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof +1 CPC IPC+CPC Available in IPC and CPC
H01K 1/34 Double wall vessels IPC+CPC Available in IPC and CPC