2004491

Information

• Patent Grant
• 2004491

• References
• Source

• Patent Number

  2,004,491

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1935
  90 years ago

• CPC

  • B21C37/286 - starting from sheet material

• US Classifications

  • 285 - Pipe joints or couplings