190385

Information

• Patent Grant
• 190385

• References
• Source

• Patent Number

  190,385

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1877
  147 years ago

• CPC

  • B21B45/04 - for de-scaling
  • B25B27/26 - compressing the springs
  • Y10T29/28 - Puddlers balls making

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming