2317211

Information

• Patent Grant
• 2317211

• References
• Source

• Patent Number

  2,317,211

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1943
  81 years ago

• CPC

  • C21D1/55 - Hardenability tests
  • C21D1/06 - Surface hardening

• US Classifications

  • 148 - Metal treatment
  • 436 - Chemistry: analytical and immunological testing