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Electrical & Energy
Class Information
Number:
237/1A
Name:
Heating systems
>
Description:
Sub-classes under this class:
Class Number
Class Name
Patents
237/12.1
Heat and power plants
87
237/13
Plants
23
237/14
Brooder and incubator
18
237/16
Combined radiator and boiler
32
237/19
Combined with water heater
169
237/1R
Miscellaneous
338
237/28
Vehicle
21
237/2R
Automatic control
25
237/46
Ventilating
46
237/50
Air
37
237/56
Water
69
237/67
Steam
41
237/69
Heated floor
115
237/70
Heat radiators
54
237/80
Antifreezing devices
77
237/81
Processes
39
237/DIG.1
Inert gas
0
Patents under this class:
Patent Number
Title Of Patent
Date Issued
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