2804587

Information

• Patent Grant
• 2804587

• References
• Source

• Patent Number

  2,804,587

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1957
  67 years ago

• CPC

  • B66B5/02 - responsive to abnormal operating conditions
  • B66B1/306 - with DC powered elevator drive

• US Classifications

  • 318 - Electricity: motive power systems
  • 361 - Electricity: electrical systems and devices