2223596

Information

• Patent Grant
• 2223596

• References
• Source

• Patent Number

  2,223,596

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1940
  85 years ago

• CPC

  • E01B3/06 - Anti-cracking dogs
  • E04G5/08 - Scaffold boards or planks

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener