1767896

Information

• Patent Grant
• 1767896

• References
• Source

• Patent Number

  1,767,896

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1930
  94 years ago

• CPC

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

• US Classifications

  • 072 - Metal deforming