406617

Information

• Patent Grant
• 406617

• References
• Source

• Patent Number

  406,617

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1889
  135 years ago

• CPC

  • E06C5/28 - of the lazy-tongs type

• US Classifications

  • 182 - Fire escape, ladder, or scaffold
  • 052 - Static structures