Environmental Heating And Cooling; Fluid Handling And Sanitary Equipment Patents (Class D23)
- Fountain (Class D23/201)
- Storage tank (Class D23/202)
- Treatment (Class D23/207)
- Lubricating can (Class D23/211)
- Gasoline or fuel type can (Class D23/211.1)
- Watering can (3) (Class D23/212)
- Dispersal (i.e., sprayer, fogger, nozzle, aerator, etc.) (4) (Class D23/213)
- Hand or foot operated pump or well curb (Class D23/231)
- Valve or body therefor (Class D23/233)
- Fitting (10) (Class D23/259)
- Sauna or steam bath type (Class D23/315)
- Liquid immersion type, e.g., aquarium, swimming pool, etc. (24) (Class D23/316)
- Mobile space heater, e.g., wheeled blower type, etc. (Class D23/317)
- Domestic water heater or boiler (Class D23/318)
- Vehicle heating or cooling (Class D23/324)
- Combined heating and cooling or with diverse element (Class D23/328)
- Furnace (Class D23/329)
- Radiator, e.g., spaced enclosed heat exchangers (Class D23/330)
- Portable (Class D23/332)
- Stabile space heater (Class D23/342)
- Air conditioner (27) (Class D23/351)
- Air treatment (Class D23/355)
- Element or attachment, not elsewhere specified (Class D23/386)
