2391957

Information

• Patent Grant
• 2391957

• References
• Source

• Patent Number

  2,391,957

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1946
  78 years ago

• CPC

  • B21C1/12 - Regulating or controlling speed of drawing drums
  • Y10T74/19423 - Multiple key
  • Y10T74/19447 - Clutch and ratchet

• US Classifications

  • 072 - Metal deforming
  • 074 - Machine element or mechanism