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Class Information
Number: D23/156
Name: Environmental heating and cooling; fluid handling and sanitary equipment >

Sub-classes under this class:

Class Number Class Name Patents
D23/200 Fluid handling or treatment equipment 139
D23/270 Sanitary fixture or housing therefor 13
D23/314 Heating or cooling 151
D23/499 Miscellaneous 28

Patents under this class:

Patent Number Title Of Patent Date Issued

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