|
| More topics under "F21 - Lighting" (695,395) |
|---|
| F21H - Incandescent mantles; Other incandescent bodies heated by combustion (187) | | F21K - Light sources not otherwise provided for (11,493) | | F21L - Lighting devices or systems thereof, being portable or specially adapted for transportation (17,446) | | F21S - Non-portable lighting devices or systems thereof (138,277) | | F21V - Functional features or details of lighting devices or systems thereof; Structural combinations of lighting devices with other articles, not otherwise provided for (398,056) | | F21W - Indexing scheme associated with subclasses , and , relating to uses or applications of lighting devices or systems (29,639) | | F21Y - Indexing scheme associated with subclasses , and , relating to the form of the light sources (100,297) |
|