677282

Information

• Patent Grant
• 677282

• References
• Source

• Patent Number

  677,282

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1901
  123 years ago

• CPC

  • E06C5/22 - by, or with the assistance of, springs

• US Classifications

  • 182 - Fire escape, ladder, or scaffold
  • 324 - Electricity: measuring and testing