1843689

Information

• Patent Grant
• 1843689

• References
• Source

• Patent Number

  1,843,689

• Date Filed

  Not available

• Date Issued

  Tuesday, February 2, 1932
  93 years ago

• CPC

  • F27D1/1858 - Doors
  • F27B9/40 - Arrangements of controlling or monitoring devices
  • F27D2019/0059 - Regulation involving the control of the conveyor movement
  • F27D2019/0084 - Controlling closure systems

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 110 - Furnaces