1077837

Information

• Patent Grant
• 1077837

• References
• Source

• Patent Number

  1,077,837

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1913
  111 years ago

• CPC

  • B21D39/12 - with rollers for expanding and flanging

• US Classifications

  • 072 - Metal deforming