1904947

Information

• Patent Grant
• 1904947

• References
• Source

• Patent Number

  1,904,947

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  91 years ago

• CPC

  • B21C1/34 - Guiding or supporting the material or mandrels

• US Classifications

  • 072 - Metal deforming