1891338

Information

• Patent Grant
• 1891338

• References
• Source

• Patent Number

  1,891,338

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1932
  92 years ago

• CPC

  • B21D9/12 - by pushing over a curved mandrel by pushing through a curved die
  • B21D7/085 - by passing through a curved die
  • Y10T29/49444 - Elbow or L-shaped fitting making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working