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PCE
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DIFF Subgroup
F21V 1/16

characterised by the material

Introduced: September 1968

Full Title

Shades for light sources > Covers for frames; Frameless shades > characterised by the material

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

Child Classifications

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  • F21V 1/17 the material comprising photoluminescent substances since 2018 IPC+CPC Available in IPC and CPC
  • F21V 1/18 the material being paper IPC+CPC Available in IPC and CPC
  • F21V 1/20 the material being glass IPC+CPC Available in IPC and CPC
  • F21V 1/22 the material being plastics IPC+CPC Available in IPC and CPC
  • F21V 1/24 the material being metal IPC+CPC Available in IPC and CPC