3900347

Information

• Patent Grant
• 3900347

• References
• Source

• Patent Number

  3,900,347

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • C22C38/12 - containing tungsten, tantalum, molybdenum, vanadium, or niobium
  • C21D8/08 - for concrete reinforcement
  • C22C38/001 - containing N

• US Classifications

  • 148 - Metal treatment