1922622

Information

• Patent Grant
• 1922622

• References
• Source

• Patent Number

  1,922,622

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1933
  91 years ago

• CPC

  • B21B19/14 - Rolling tubes by means of additional rollers arranged inside the tubes

• US Classifications

  • 072 - Metal deforming