3460754

Information

• Patent Grant
• 3460754

• References
• Source

• Patent Number

  3,460,754

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1969
  55 years ago

• CPC

  • B60H1/00442 - using a vacuum
  • B60H1/00485 - Valves for air-conditioning devices
  • B60H1/00835 - Damper doors
  • G05D23/1925 - using a combination of auxiliary electric and non-electric power

• US Classifications

  • 237 - Heating systems
  • 236 - Automatic temperature and humidity regulation