F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
LIGHTING AND HEATING
 F21
LIGHTING (details specific to arc lamps H05B 31/00)
 F21

Note(s)

  1. Attention is drawn to the explanatory note (III) in section H.
  2. In this class, the following terms are used with the meanings indicated:
    1. "Portable" means "intended to be carried personally".
    2. "Non-portable" means "not intended to be carried personally, even if capable of being moved from place to place".
    3. "Electric" includes "not stated to be non-electric".
 F21H
MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION (arrangements thereof F21V 36/00; burners F23D)

 F21K
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR

 F21L
PORTABLE LIGHTING DEVICES

 F21M
NON-PORTABLE BEAM LIGHTING DEVICES OR SYSTEMS (signal lighting devices F21Q)

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

 F21Q
NON-PORTABLE LIGHTING DEVICES FOR SIGNALLING (arrangements or adaptation of optical signalling devices for vehicles, see the relevant classes B60-B64; burners, combustion apparatus F23; signalling arrangements or devices, other than lamps or shutters therefor, 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 F21L, F21M, F21P, F21Q, 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.