Class Information Number: 290 Name: Prime-mover dynamo plants > Description: This class includes patents for the production and transmission of electric power and does not include any specific use to which the power is put. (Note. The mere reference to or the inclusion in a claim of an energy-consuming device, broadly stated--as, for example, a "lamp", "heater", or "tool"--is not sufficient to exclude the patent from this class). It includes the following groups when the invention includes some motor other than a dynamo electric machine in combination with a dynamo electric machine: