1933559

Information

• Patent Grant
• 1933559

• References
• Source

• Patent Number

  1,933,559

• Date Filed

  Not available

• Date Issued

  Tuesday, November 7, 1933
  91 years ago

• CPC

  • B21D53/66 - spades shovels

• US Classifications

  • 072 - Metal deforming
  • 076 - Metal tools and implements, making
  • 172 - Earth working
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener