1759424

Information

• Patent Grant
• 1759424

• References
• Source

• Patent Number

  1,759,424

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1930
  94 years ago

• CPC

  • E06C1/26 - in one piece
  • E06C1/397 - characterised by having wheels, rollers, or runners
  • Y10T16/212 - Spring supported

• US Classifications

  • 182 - Fire escape, ladder, or scaffold
  • 016 - Miscellaneous hardware