subclasses 236, 267, 338, and 344+ for electrical systems for supplying electrical energy to electric lamps or discharge devices of the gas or vapor type, where the lamp or discharge device is provided with an electromagnet for influencing its operation.
(the lamp or discharge device; is provided; with an electromagnet for influencing its operation; L:the gas or vapor type)
the lamp or discharge device
is provided
with an electromagnet for influencing its operation L:the gas or vapor type