(under subclass 119) Systems having combined therewith signaling means, or indicator means, or alarm means operated by some part of the load device or the electrical circuits
therefor to indicate some condition in the load device or the circuits therefor.
(1) Note. The condition indicated in the systems in this subclass is usually the condition which causes the shunt circuit closing means or the cutout means to operate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129, and indented subclasses, for other systems under the class definition provided with signaling means, or indicator means, or alarm means.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices, 10, for the structure of electric lamps and discharge devices which are provided with a temperature indicator, and subclasses 323+ for lamps and discharge devices which have combined therewith a signaling means, indicator means or alarm means. In the devices of Class 313 there is no electrical system for supplying current to the lamp or discharge device and there is no electrical system for controlling the signal indicator or alarm. The excluded systems are in this class (315) and not in Class 313.
324, Electricity: Measuring and Testing,
403+, for apparatus or methods for electrically testing electric lamps or space discharge devices.
340, Communications: Electrical,
635+, for electrical signal or alarm systems responsive to or controlled by some condition of some electrical apparatus.
