2144528

Information

• Patent Grant
• 2144528

• References
• Source

• Patent Number

  2,144,528

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1939
  86 years ago

• CPC

  • E04C2/427 - Expanded metal or other monolithic gratings
  • B21D47/005 - Making gratings
  • Y10T29/4962 - Grille making

• US Classifications

  • 052 - Static structures
  • 029 - Metal working
  • 454 - Ventilation