2787472

Information

• Patent Grant
• 2787472

• References
• Source

• Patent Number

  2,787,472

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1957
  68 years ago

• CPC

  • B62B9/02 - providing for travelling up or down a flight of stairs

• US Classifications

  • 280 - Land vehicles
  • 267 - Spring devices