1374580

Information

• Patent Grant
• 1374580

• References
• Source

• Patent Number

  1,374,580

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1921
  103 years ago

• CPC

  • E06B3/825 - with a wooden frame
  • E06B2003/7094 - with ventilated innerspace

• US Classifications

  • 052 - Static structures