3220511

Information

• Patent Grant
• 3220511

• References
• Source

• Patent Number

  3,220,511

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • A62B1/06 - by making use of rope-lowering devices
  • B64D17/78 - in association with other load-retarding apparatus
  • B64D2700/62587 - Other emergency devices

• US Classifications

  • 188 - Brakes
  • 182 - Fire escape, ladder, or scaffold
  • 482 - Exercise devices