1363774

Information

• Patent Grant
• 1363774

• References
• Source

• Patent Number

  1,363,774

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1920
  104 years ago

• CPC

  • E06B5/16 - Fireproof doors or similar closures Adaptations of fixed constructions therefor
  • E06B2003/7053 - corrugated

• US Classifications

  • 052 - Static structures