(under the class definition) Subject matter including an indicia or indicating scale formed on or within the envelope of the device.
(1) Note. The filament or electrodes of the device may be formed into the shape of indicia or have indicia or a scale formed thereon.
(2) Note. See the class definition for the classification of electric lamps including those of the discharge device type, and cathode ray discharge devices combined with a separable support for the lamp or discharge device (e.g., electric signs which include a lamp and a mounting panel).
(3) Note. See the class definition for the classification of electric lamps, including those of the discharge device type, and cathode ray discharge devices combined with a separable casing or jacket for the lamp or discharge device (e.g., electric signs which include a lamp and a casing, oscillographs with casings).
(4) Note. See the class definition for the classification of electric lamps including those of the discharge device type and cathode ray discharge devices in combination with a separable optical device (e.g., mirror, reflector, etc..), for the lamp or discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
107.5, for variable width electron stream discharge device which have a fluorescent screen or other anode having a scale or indicia formed thereon (e.g., magic eye-type tubes). 462, for cathode-ray tubes which are provided with targets or ray receiving means which have a scale or indicia formed thereon.
SEE OR SEARCH CLASS
40, Card, Picture, or Sign Exhibiting,
541+, for illuminated signs which include electric lamps of the type classified in this subclass in Class 313 in combination with separable sign supporting structure for the lamp.
315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses, for miscellaneous systems, for supplying electrical energy to electric lamps and gas or vapor type discharge devices, including such lamps and discharge devices as have indicia as a part thereof.
324, Electricity: Measuring and Testing,
122, for spark gaps having scales for indicating the separation of the electrodes, and designed for use as voltmeters.
