513247

Information

• Patent Grant
• 513247

• References
• Source

• Patent Number

  513,247

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1894
  131 years ago

• CPC

  • E06B5/16 - Fireproof doors or similar closures Adaptations of fixed constructions therefor
  • E04B7/20 - Roofs consisting of self-supporting slabs
  • E06B2003/7032 - of non-vegetal fibrous material
  • E06B2003/7034 - of asbestos

• US Classifications

  • 052 - Static structures