|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

LIGHTING AND HEATING

|  | F21 |
LIGHTING (details specific to arc lamps Fulltext... Hierarchy... Expanded...H05B 31/00)

|  | F21 |
Note(s) Attention is drawn to the note (Note III) following the Contents of Section of Section H. In this class, the following terms are used with the meanings indicated: "Portable" means "intended to be carried personally". "Non-portable" means "not intended to be carried personally, even if capable of being moved from place to place". "Electric" includes "not stated to be non-electric".

|  | F21H |
MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION (arrangements thereof Fulltext... Hierarchy... Expanded...F21V 36/00; burners Fulltext... Hierarchy... Expanded...F23D)

|  | F21K |
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR

|  | F21L |
PORTABLE LIGHTING DEVICES

|  | F21M |
NON-PORTABLE BEAM LIGHTING DEVICES OR SYSTEMS (signal lighting devices Fulltext... Hierarchy... Expanded...F21Q)

|  | F21P |
NON-PORTABLE DEVICES OR SYSTEMS FOR FLOOD-LIGHTING BUILDINGS, LIGHTING FOUNTAINS, LIGHTING STAGES, AND FESTIVAL LIGHTING (beam lighting devices Fulltext... Hierarchy... Expanded...F21M; decorative lighting devices for domestic use Fulltext... Hierarchy... Expanded...F21S)

|  | F21Q |
NON-PORTABLE LIGHTING DEVICES FOR SIGNALLING (arrangements or adaptation of optical signalling devices for vehicles, see the relevant classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B60-B64; burners, combustion apparatus Fulltext... Hierarchy... Expanded...F23; signalling arrangements or devices, other than lamps or shutters therefor, Fulltext... Hierarchy... Expanded...G08B)

|  | F21S |
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS, NOT OTHERWISE PROVIDED FOR

|  | F21V |
DETAILS OF LIGHTING DEVICES, OF GENERAL APPLICATION

|  | F21V |
Note(s) In this sub-class have been included only those lighting device details which were considered to be of a kind applicable to the lighting devices of more than one of the sub-classes Fulltext... Hierarchy... Expanded...F21L, Fulltext... Hierarchy... Expanded...F21M, Fulltext... Hierarchy... Expanded...F21P, Fulltext... Hierarchy... Expanded...F21Q, Fulltext... Hierarchy... Expanded...F21S. Inventions concerned with details of the kinds provided for are to be classified in this sub-class, even though they are only stated to be applied to a device of a single sub-class.