3656578

Information

• Patent Grant
• 3656578

• References
• Source

• Patent Number

  3,656,578

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • E02F9/0833 - Improving access
  • A01D41/1261 - Access devices for personnel
  • B60R3/02 - Retractable steps or ladders

• US Classifications

  • 182 - Fire escape, ladder, or scaffold