522595

Information

• Patent Grant
• 522595

• References
• Source

• Patent Number

  522,595

• Date Filed

  Not available

• Date Issued

  Tuesday, July 10, 1894
  130 years ago

• CPC

  • C21D5/10 - in gaseous agents

• US Classifications

  • 148 - Metal treatment
  • 076 - Metal tools and implements, making