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Class Information
Number: 237/1A
Name: Heating systems >

Sub-classes under this class:

Class Number Class Name Patents
237/12.1 Heat and power plants 108
237/13 Plants 27
237/14 Brooder and incubator 26
237/16 Combined radiator and boiler 37
237/19 Combined with water heater 206
237/1R Miscellaneous 338
237/28 Vehicle 32
237/2R Automatic control 33
237/46 Ventilating 46
237/50 Air 37
237/56 Water 80
237/67 Steam 43
237/69 Heated floor 135
237/70 Heat radiators 57
237/80 Antifreezing devices 80
237/81 Processes 45
237/DIG.1 Inert gas 0

Patents under this class:

Patent Number Title Of Patent Date Issued

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