IPC Subgroup
F21V 3/04 characterised by materials, surface treatments or coatings
Introduced: September 1968
Last revised: January 2018
Full Title
Globes; Bowls; Cover glasses > characterised by materials, surface treatments or coatings
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- LIGHTING
- Subclass:
- FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
2 direct subcodes
Child Classifications
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