ELECTRIC BACK UP PORTABLE GENERATORS; PORTABLE AND STATIONARY ELECTRIC GENERATORS FOR INDUSTRIAL, COMMERCIAL OR RECREATIONAL USE
MachineryDEVICE FOR STORING AND PROVIDING POWER; POWER SUPPLIES FOR SUPPLYING BACK UP POWER; BACK UP POWER SUPPLIES; POWER SUPPLIES; BATTERY OPERATED POWER SUPPLY SYSTEM COMPRISED OF BATTERIES, INVERTERS FOR USE IN A POWER FAILURE TO PROVIDE BACK UP POWER FOR INDUSTRIAL, COMMERCIAL, OR RESIDENTIAL APPLICATION
Electrical and Scientific Apparatus