1747723

Information

• Patent Grant
• 1747723

• References
• Source

• Patent Number

  1,747,723

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1930
  94 years ago

• CPC

  • B21D39/12 - with rollers for expanding and flanging

• US Classifications

  • 072 - Metal deforming